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PRESENTS MADE TO THE ROYAL SOCIETY From November 1788 to June 1789; WITH The NAMES of the DONORS. | Presents | Donors | |-------------------------------------------------------------------------|------------------------------------------------------------------------| | Nov. 6. Transactions of the Royal Irish Academy, 1787. Dublin. | The Royal Irish Academy. | | Transactions of the Society for Encouragement of Arts, Manufactures, and Commerce. Vol. VI. London, 1788. | The Society for Encouragement of Arts, Manufactures, and Commerce. | | Commentationes Societatis Regiae Scientiarum Gottingenfis ad a. 1785 et 86. Vol. VIII. Gottingae, 1787. | The Royal Society of Sciences at Göttingen. | | The Life of Capt. James Cook, by Andrew Kippis. London, 1788. | The Rev. Andrew Kippis, D.D. F.R.S., George Forster, M.D. F.R.S. | | Georgii Forster de Plantis esculentis insularum Oceani Australis Commentatio. Berolini, 1786. | | | Florulae insularum australium Prodromus, Auctore G. Forster. Gottingae, 1786. | Anth. Fothergill, M.D. F.R.S. | | A new experimental Enquiry into the Nature and Qualities of the Cheltenham Water. Bath, 1788. | Mr. John Nichols. | | Fragments of English and Irish History in the ninth and tenth Centuries, translated from the Icelandic, by Grimr Johnson Thorkelin. London, 1788. | Nov. | 1788. Nov. 6. North View of the Church of Woodbridge, in the County of Suffolk, drawn by J. Johnson, engraved by J. Basire. 1788. Description of Woodbridge Church. fol. Mathematical Essays, by the Rev. J. Hellins. London, 1788. The Generation of animal Heat investigated, by E. Peart. Gainsborough, 1788. The Duties of a Regimental Surgeon considered, by R. Hamilton. 2 Vols. London. Extrait des Observations Astronomiques et Physiques faites à l'Observatoire Royal, en l'Année 1787. Memoire sur les Hopitaux de Paris, par M. Tenon. Paris, 1788. Effai sur le Phlogistique et sur la Constitution des Acides, traduit de l'Anglois de M. Kirwan, avec des Notes de M. M. de Morveau, Lavoisier, De la Place, Monge, Berthollet, et de Fourcroy. Paris, 1788. Examen Physico-chimique des Principes de l'Air et du Feu, par M. Le Semelier. 2 Vols. Paris, 1788. Observations generales sur les Hopitaux, par M. Iberti. Londres, 1788. Memoire sur l'Epidemie qui a regné dans la Province du Poitou pendant 1784 et 1785, par M. J. G. Gallot. Poitiers, 1787. Ephemerides Astronomicæ annorum 1788 et 1789 ad meridianum Mediolanensem supputatae ab Ang. de Cesaris. 2 Vol. Mediolani, 1787. Occurfs Medici de Vaga ægritudine infirmitatis Nervorum, Andreae Comparetti. Venetiis, 1780. A. Comparetti Observationes opticæ de Luce inflexa et coloribus. Patavii, 1787. A Map of the Peninsula of India, from the Khrishnah River to Cape Comorin, by J. Rennell, in Two Sheets. A new Grammar, to teach French to Englishmen, by Dom. Blondin. London, 1788. M. R. Loder and Mr. J. Nichols. The Rev. John Hellins. E. Peart, M. D. R. Hamilton, M.D. Comte deCaffini,F.R.S. M. Tenon, of the Royal Academy of Sciences of Paris. The Translator. M. Le Semelier. M. Iberti. M. Gallot. The Astronomers of Milan. Professor Comparetti of Padoua. James Rennell, Esq. F. R. S. Dom. Blondin. Nov. 1788. Nov. 13. Discours de l'Academie Royale de l'Histoire au Roi, à l'Occasion de la Naissance de l'Infant, en Espagnol et en Francois. Madrid, 1788. 20. Linguarum totius Orbis vocabularia comparativa, Augustissimae cura collecta. Sectionis primae pars prior. Petropol. 1786. 4° Kongl. Vetenskaps Academiens Nya Handlingar. Tom. VIII. för år 1787, 3d and 4th Quarter; and Tom. IX. för år 1788, 1st and 2d Quarter. Stockholm. 8° Meteorological Journal kept at Fort William, Bengal, from Nov. 20, 1773, to June 28, 1787. 3 Vols. MS. fol. The Natural History and Antiquities of Selborne, in the County of Southampton, by Gil. White. London, 1789. 4° 27. A Brafs Model of a Machine to turn a Mill by the Steam. A Model in Ivory of a vertical Axis, supported by three friction Wheels. A Model in Wood of the same, with four friction Wheels, when the Weight is great. A Model of a Marine Barometer Tube. Meteorological Diary, kept at Madras, from Feb. 18, to Sept. 30, 1787. MS. 4° Perspective View of the Font in the Church of Worlingworth, in the County of Suffolk, drawn by N. Revett, engraved by G. Vertue. 1753. Rede bey der Gedächtnisfeyer Hevelii den 28 Jan. 1787, gehalten von E. P. Blech. Dantzig. 4° Dec. 11. Florae Cantabrigiensis Supplementum alterum, Authore R. Relhan, Cantabrigiae, 1788. 8° 18. Supplement à l'Édition in folio des Oeuvres de M. Perronet. Paris, 1789. fol. Commentarii de Rebus in Scientia Naturali et Medicina gestis. Vol. XXIX. Lipia, 1787. 8° 1789. Jan. 8. Tabula exhibens crania Rhinocerotis Africae, et Rhinocerotis Asiae, 1787. An Account of the Pelew Islands, composed from the Journals of Capt. Henry Wilson Donors, Dom. Blondin. The Emprefs of Russia. The Royal Academy of Sciences of Stockholm. Col. Pearce. Messrs. B. White and Son. Col. Pearce. William Petrie, Esq. Mr. J. Nichols and Mr. R. Loder. Dr. E. P. Blech, of Dantzig. The Rev. Richard Relhan, M.A.F.R.S. M. Perronet, F.R.S. Mr. Hurlock, F.R.S. Petrus Camper, M.D. George Keate, Esq. F.R.S. Jan. and some of his Officers, by G. Keate. London, 1788. Jan. 8. The London Medical Journal. Vol. IX. London, 1788. Description des Gites de Mineraux et des Bouches à Feu de la France. 3me et 4me Partie. Paris, 1789. An Essay on the Recovery of the apparently dead, by C. Kite. London, 1788. An Essay on the Fracture of the Patella or Knee-pan, by John Sheldon. London, 1789. Method to discover the Difference of the Earth's Diameters, by T. Williams. London, 1788. Decouverte d'une Methode peu couteuse, efficace et assurée de traiter tous les Hommes decezés, afin de rappeler à la Vie ceux qui ne sont morts qu'en apparence, par J. G. C. A. Baron de Hupsch. Cologne, 1789. Enquiry in the First and general Principles of Animal and vegetable Life, by R. Harrington. London, 1781. Thoughts on the Properties and Formation of the different Kinds of Air. London, 1785. A Letter endeavouring to prove, that the newly adopted Opinions of inflammable and dephlogisticated Airs forming Water, and the Acids being compounded of the different Kinds of Air, are fallacious, by R. Harrington. London, 1788. Feb. 5. Abstracts from a Meteorological Register, kept in Hudson's Bay, from October, 1784, to July, 1788, MS. Astronomisches Jahrbuch für das Jahr 179, von J. E. Bode. Berlin, 1788. A short Appendix to Dr. Monro's Treatise on Medical and Pharmaceutical Chemistry. London, 1789. A Meteorological Journal of the Year 1788, kept in Pater-noster-Row. London, by W. Bent. Samuel Foart Simmons, M. D. F. R. S., Baron de Dietrich. Mr. Charles Kite. Mr. Sheldon, F. R. S. Mr. Thomas Williams. Baron de Hupsch. Mr. John Sherwen. John Mc Nab, Esq. Mr. J. E. Bode, F.R.S. Donald Monro, M. D. F. R. S. Mr. William Bent. 1789. Feb. 19. Il Mercurio Italico. Gennajo, 1789. London. 8° A Register of the Barometer, Thermometer, Hygrometer, Rain, Dew, Evaporation, Wind, and Appearance of the Sky, at Gravefend, in Kent, for the Years 1787 and 1788, MS. fol.; with a Chart of Meteorology for the Year 1788. March 5. The Preface to a Specimen of a general Astronomical Catalogue, arranged in Zones of North Polar Distance, by F. Wollaston. London, 1789. 8° Chronological Tables of the High Sheriffs of the County of Lincoln. London, 1779. 4° 12. A System of Hydrostatics, by T. Parkinson. Cambridge, 1789. 4° April 2. A Treatise of the Materia Medica. 2 vols. Edinburgh, 1789. 4° 30. Memoires de l'Academie Imperiale et Royale des Sciences, et Belles Lettres de Bruxelles. Tome V. Bruxelles, 1788. 4° Memoirs of the Medical Society of London. Vol. II. London, 1789. 8° A General History of Music, by C. Burney. Vol. III. and IV. London, 1789. 4° Reliquiae Rudbeckianae, cura J. E. Smith. Londini, 1789. fol. Il Mercurio Italico. Febraio e Marzo, 1789. London. 8° May 7. Histoire de l'Academie Royale des Sciences, année 1786. Paris, 1788. 4° Meteorological Account of the Weather at Madras, from June 1, 1787, to May 31, 1788. Madras, 1788. 4° Codex Diplomaticus Siciliae ab a. 827 ad 1072, cura Alph. Airoldi. Tom. I. Panormi, 1788. fol. The History and Antiquities of Newcastle upon Tyne, by J. Brand. 2 Vols. London, 1789. 4° Histoire Naturelle du Jorat, et de ses Environs, par M. le C. G. de Razoumowsky. Tomes II. Lausanne, 1789. 8° Donors. Mr. Francis Saftres. Mr. Charles Kite. The Rev. Francis Wollaston, LL.B.F.R.S. Edmund Turnor, Esq. F. R. S. The Rev. Thomas Parkinson, B. D. F. R. S. William Cullen, M. D. F. R. S. The Imperial and Royal Academy of Sciences of Brussels. The Medical Society of London. Charles Burney, Mus. D. F. R. S. James Edward Smith, M. D. F. R. S. Mr. Francis Saftres. The Royal Academy of Sciences of Paris. Sir Joseph Banks, Bart. Pr. R. S. Sir William Hamilton, K. B. F. R. S. The Rev. John Brand, M. A. Sec. A. S. Comte G. de Razoumowsky. 1789. May 7. Lettre contenant la Description des frottoirs Electriques d'une nouvelle Construction. Harlem, 1789. 4° 14. Original Letters written during the Reigns of Henry VI. Edward IV. and Richard III. published by Sir John Fenn. Vol. III. and IV. London, 1789. 4° Lettre au Docteur Maty, par l'Abbé Coyer. Bruxelles, 1767. 12° 21. Experiences sur les Vegetaux, par J. Ingenhouz. Tome II. Paris, 1789. 8° Traité des Principales Maladies externes et internes, par J. F. de Herrenschwand. Berne, 1788. 4° Memoires sur l'Agriculture du Boulonnois. Boulogne, 1784. 8° A Portrait of the late Sir William Watson, Knt. M.D. V. P. R. S. painted by Abbot. 28. A new English Translation of the Pentateuch, by Isaac Dalgado. London, 1789. 4° De la Liberte de Commerce. Beauvais, 1780. 8° June 11. Britannia, by W. Camden, translated and enlarged, by R. Gough. London, 1789. 3 Vols. fol. Effai sur la Montagne salifere du Government d'Aigle dans le Canton de Berne, par F. S. Wild. Geneve, 1788. 8° The Coach of Safety. Two coloured Plates, with a printed Account of it. 18. J. Gaertner de fructibus et feminibus Plantarum. Stutgardiae, 1788. 4° July 2. A View of the Reign of Frederick II. of Prussia, by J. Gillies. London, 1789. 8° Letters from Barbary, France, Spain, Portugal, &c. by an English Officer. 2 Vols. London, 1788. 8° Vitae antiquae Sanctorum qui habitaverunt in ea parte Britanniae nunc vocata Scotia vel in ejus insulis; edidit J. Pinkerton. Londini, 1789. 8° The History and Antiquities of Canonbury-house, at Islington, by J. Nichols. London, 1789. 4° Donors. Martin Van Marum, M. D. of Harlem. Sir John Fenn, Knt. William Seward, Esq. F. R. S. John Ingen-houz, M.D. F. R. S. Jonathan Watson, Esq. F. R. S. Le Baron de Courfel. William Watson, Esq. F. R. S. Mr. William Blizard, F. R. S. M. Brisson. Richard Gough, Esq. F. R. S. M. Wild. Mr. John Hatchett. Joseph Gaertner, M. D. F. R. S. John Gillies, LL.D. F. R. S. Major Jardine. John Pinkerton, Esq. Mr. John Nichols. 1789. July 2. Voyage à la Nitriere naturelle qui se trouve à Molfetta en Pouille, par M. Zimmerman. Paris, 1789. 8° J. Churchman's Address in Support of the Principles of the Magnetic Variation, and their applications in determining the Longitude at Sea. fol. Donors. Professor Zimmerman, of Brunswick. Mr. John Churchman. AN INDEX TO THE SEVENTY-NINTH VOLUME OF THE PHILOSOPHICAL TRANSACTIONS. A. ACCOUNT of a bituminous lake or plain, in the island of Trinidad, p. 65. Account of a particular change of structure in the human ovarium, p. 71. Account of a monster of the human species, p. 157. Account of a sinking-in of the ground near Ketton, in Rutland, p. 164. Acid, nitrous. A red heat not necessary to the conversion of nitrous acid into pure air, p. 147. Volatile vitriolic acid contains the proper element of dephlogisticated air, p. 292. Prussian blue supposed to have acquired something that is of the nature of an acid, p. 298. Experiments on the production of nitrous acid and nitrous air, p. 300. A relation subsists between nitrous acid and volatile alkali, ibid. Nitrous acid produced by a mixture of nitrous air and dephlogisticated air, p. 311. Vitriolic acid supposed to have a stronger affinity to the inflammable principle than it has to phlogisticated air, p. 312. Action of points in electricity, experiments on, pp. 278, 281. Air, inflammable or dephlogisticated, when either of them is extracted from any substance in contact with the other kind of air, so that one of them is made to unite with the other in what may be called its nascent state, the result will be fixed air; but if both... of them be completely formed before their union, the result will be nitrous acid, p. 12. All inflammable air, according to the antiphlogistic hypothesis, comes from water only, ibid. A small quantity of inflammable air is procured, by sending a steam over melted sulphur, p. 15. Inflammable air produced by a dissolution of iron in diluted vitriolic acid, ibid. Vitriolic acid air contains the same inflammable principle with inflammable air, p. 16. Nitrous air, when mixed with dephlogisticated air, has no tendency to produce phlogisticated air, p. 149. Nitrous air has no effect on phlogisticated air, ibid. Nitrous air does not contain so much phlogiston as an equal bulk of inflammable air, p. 150. Alkaline air converted into inflammable air, p. 295. Nitrous air and dephlogisticated air by mixture produce nitrous acid; and nitrous air, by mere heat, is converted into a mixture of phlogisticated and dephlogisticated airs, p. 309. Nitrous air changed into phlogisticated air, by abstracting from the nitrous air a quantity of dephlogisticated air, ibid. The residuum of volatile alkaline air, after the calces of lead have been revived in it, is phlogisticated air, p. 311. The vitriolic acid supposed to have a stronger affinity to the inflammable principle than it has to phlogisticated air, p. 312. Alkali, volatile, changed into a mixture of phlogisticated and inflammable air by mere heat, p. 311. Almanack, nautical, the most perfect work of the kind, p. 60. Altitude. See Quadrant of Altitude. Amphibia, a class of animals so called by Linnaeus, p. 21. Observations on this class, ibid. Linnaeus particularly unfortunate in the construction of this class, ibid. Amphibia Nantes not furnished with lungs, ibid. Anderson, Alexander, on a bituminous lake in the Island of Trinidad, p. 65. Assam, a country bordering on, and much connected with, Thibet, p. 107. Attraction, law of. See Problems. Azimuth. See Quadrant of Altitude. B. Babar, the country adjacent, highly injurious to European constitutions, p. 80. Baillie, Matthew, on a particular change of structure in the human ovarium, p. 71. See Ovarium, also Ovaria. Balli in electricity, a variety of, unnecessary, p. 280. Barker, Thomas, Esq. Abstract of a register for the year 1788, of the barometer, thermometer, and rain, at Lyndon in Rutland. Also of the rain in Hampshire and Surrey, p. 162. Barometer, state of, at London during the year 1788, p. 114—138. Berer, destructive to ships, p. 68. Boutan and Thibet, some account of the vegetable and mineral productions of, p. 79. Bay (La). See Tar-lake. Buxaduar, Buxaduar, many of the plants peculiar to Bengal require nursing at, p. 80. Buxaduar unhealthy to strangers from May till September, p. 81. State of the thermometer there, ibid. Several excellent springs of water in its neighbourhood, ibid. C. Chalu, three springs discovered near this place, forcing their way through the ground with violence, and giving rise to a lake many miles in extent, well-stored with water-fowl and excellent fish, p. 92. The water of the lake impregnated with alum and felenetic earth, p. 93. The productions of Chalu, ibid. Chepta, its situation and productions, p. 84. Here are several springs, and one slightly impregnated with iron, ibid. Between Chepta and Pagha, a mineral well, strongly impregnated with iron, discovered by Mr. Saunders, ibid. State of the thermometer at Chepta, ibid. Chooka, two mineral wells slightly impregnated with iron, discovered by Mr. Saunders near, p. 83. Natives of Chooka not unacquainted with the method of extracting iron from the stones, but despise its use in building, ibid. Cold, artificial, experiments relating to the production of, p. 199. Coluber lauticaudatus, a species of venomous serpents, the fangs of which are as small as common teeth, p. 30. Comet, observations on, p. 151. Its situation, p. 152. D. Datura ferox, or Thorn-apple, used medicinally in China and some parts of Thibet, p. 89. A powerful narcotic, ibid. Dog. See Letter. Duina, productions of, p. 92. State of the thermometer at, ibid. Dukaigua, state of the thermometer at, soil, and productions of, p. 90. Here are many springs slightly impregnated with a felenetic earth, ibid. E. Earth, and other planets of the Copernican system, are bodies not luminous in themselves, p. 213. Eclipse. See Sun. Electricity, experiments and observations on, p. 265. On the excitation of electricity, ibid. Plate machines do not collect more electricity than cylinders do with half the rubbed surface, p. 269. The line of light on a cylinder departing from a simple cushion consists of returning electricity, p. 273. The projecting part of the cushion compensates the electricity upon the cylinder, and by diminishing its intensity prevents its striking back in such large quantities as it otherwise would do, ibid. The method of producing considerable intensity, ibid. The action of the cylinder, by a simple cushion: cushion or the hand, was first improved by the addition of a leathern flap; then by moistening the rubber; afterwards by applying the amalgam; and, lastly, by the addition of a silk flap, p. 278. Experiments on the luminous appearance of electricity and the action of points, ibid. The escape of negative electricity from a ball attended with the appearance of strait sharp sparks with a hoarse or chirping noise, pp. 278, 279. A variety of balls in electricity unnecessary, p. 280. Volta's opinion, that a point is the coating to an infinitely small plate of air, erroneous, p. 281. In any electrified conductor the transition or escape of electricity will be made chiefly from that part of the surface which is the most remote from the natural flare, p. 282. Thicker glasses require much less electricity to produce an intensity which breaks them than thinner do, p. 284. The perforation of glass by the long spark, or by the spark through oil or cement, supposed to depend on the intensity of the electricity, which has not time to diffuse itself, but charges a minute part of the surface very high, p. 285. Muscovy talc, a very perfect non-conductor; capable of being divided into plates of less thickness than a two-hundredth part of an inch; in consequence of its great capacity gives very strong electric shocks; and its laminae, contrary to the assertion of Beccaria, are naturally in strong opposite states of electricity, and flash to each other when torn afunder in the dark, ibid. Euler's hypothesis of refraction of the differently refrangible rays of light proved to be false, p. 257. His hypothetical principle neither fit for rendering a telescope achromatic, nor to account for the distinctness of the human vision, ibid. Excitation of electricity, experiments on, p. 265. Strength of the excitation ascertained, ibid. Silk the chief agent in excitation of electricity, p. 271. Experiments and observations on the principle of acidity, the composition of water, and phlogiston, p. 7. Experiments on the phlogistication of spirit of nitre, p. 139. Experiment proving that heat and not light gives colour to spirit of nitre, p. 140. Experiments on the congelation of quicksilver in England, p. 199. Experiments relating to the production of artificial cold, ibid. Experiment proving that mercury may be frozen not only in England in summer, but even in the hottest climate, at any season of the year, p. 202. Experiments illustrating the subject of producing cold, pp. 209, 210. Experiment illustrating the theory of vision, p. 261. Experiments and observations on electricity, p. 265. Experiments shewing that the office of silk is not merely to prevent the return of electricity from the cylinder to the cushion, but that it is the chief agent in the excitation; while the cushion serves only to supply the electricity, and perhaps increase the pressure at the entering part, pp. 265, 266. Experiments on the luminous appearances of electricity and the action of points, p. 278. Experiments on the action of points in electricity, pp. 281, 282. Experiments on the transmission of the vapour of acids through an hot earthen tube, and further observations relating to phlogiston, p. 289. Experiment on oil of vitriol, ibid. Experiment on spirit of nitre, p. 291. Experiment in which alkaline air is converted into inflammable air, p. 295. Experiments relating to the doctrine of phlogiston, phlogiston, ibid. Experiments showing that manganese, per se, gives airs of different kinds, but chirly fixed and dephlogisticated airs, as soon as it is subjected to a considerable heat, p. 306. Eyes. Fifteen inches the distance at which the generality of eyes see with the most distinctness, p. 258. F. Fangs, venomous, in serpents, merely offensive weapons, p. 33. Situation of venomous fangs always in the anterior and exterior parts of the upper jaw, p. 34. Fructification chiefly depends on rain falling at the latter end of the season of flowering, p. 39. G. Gentoo Boy, an astonishing living subject, having his brother adhering to his breast, p. 157. Portrait of, p. 159. Glass, the perforation of, by the long electric spark, or by the spark through oil or cement, supposed to depend on the intensity of the electricity, which has not time to diffuse itself, but charges a minute part of the surface very high, p. 285. Globe, terrestrial and celestial, few instruments that better fulfil their design in general, p. 1. Gray, Edward Whitaker, on the class of animals called, by Linnaeus, Amphibia, and particularly on the means of distinguishing those serpents which are venomous from those which are not so, p. 21. Ground, account of a sinking in of the, near Ketton in Rutland, p. 164. II. Heavens, remarks on the construction of, p. 212. Herschel, Dr. William, on a comet, p. 151. Catalogue of a second thousand of new nebulae and clusters of stars; with introductory remarks on the construction of the heavens, p. 212. Hunter, John, on the identity of the species of the Dog, Wolf, and Jackal, p. 160. Hutchinson, Rev. Mr. B. on the dryness of the year 1788, p. 37. I. Jackal. See Letter. Iron, dissolved in concentrated acid of vitriol, produces vitriolic acid air; but being dissolved in diluted vitriolic acid, produces inflammable air, p. 15. The decomposition of water, by means of iron, a fallacy, p. 17. Iron imbibes nothing but water when it parts with its phlogiston, ibid. Vol. LXXIX. K. *Kite* (electrical) raised by Loammi Baldwin during the approach of a severe thunderstorm, p. 275. Effect of the electricity upon him, p. 276. L. *Lac*, the produce of, and a staple article of commerce in, Assam, p. 107. Lac neither a gummy nor a resinous substance, though it has some properties which are common to both, ibid. Known in Europe by the different appellations of slick-lac, seed-lac, and shell-lac, ibid. Used as a dye by the natives of Assam, p. 109. The method of purifying it, ibid. *Lake*, bituminous. See *Trinidad*, also *Tar-lake*. — Tincal found in a lake in Thibet, which is fifteen days journey northward from Tissolumboo, p. 96. Great quantities of rock salt found in this lake, p. 97. *Letter*, supplementary, on the identity of the species of the Dog, Wolf, and Jackal, p. 160. *Letters*, two, concerning a monster of the human species, p. 157, 158. *Light*, capable of giving colour to spirit of nitre, p. 140. — an attempt to explain a difficulty in the theory of vision, depending on the different refrangibility of light, p. 256. Euler's hypothesis of refraction of the differently refrangible rays of light proved to be false, p. 257. *Lime-stone*, rock of, discovered at Punukha; very advantageously situated for being worked, and exceedingly pure, p. 83. *Linnæus*, many of his descriptions given in a very careless manner, p. 21. Particularly unfortunate in the construction of the class called amphibia, ibid. *Liquor*, green acid, procured by the explosion of dephlogisticated and inflammable airs in close vessels, pp. 8, 9, 10. M. *Manganise*, per se, gives airs of different kinds, but chiefly fixed and dephlogisticated airs, as soon as it is subject to a considerable heat, p. 306. *Mangrove* swamps in the island of Trinidad, p. 65. *Marsham*, Robert, indications of spring, p. 154—156. *Maskelyne*, Dr. Nevil, on a difficulty in the theory of vision, depending on the refrangibility of light, p. 256. *Mercury*, Mercury, experiments on the congelation of, p. 199. Vide Experiments. Quicksilver. Meteorological journal for the year 1788, kept at the apartments of the Royal Society, p. 114—137. See Tables. Milner, Rev. Isaac, on the production of nitrous acid and nitrous air, p. 300. Monster of the human species, account of, p. 157. See Gentoo Boy. Morgan, William, on the method of determining, from the real probabilities of life, the value of a contingent reversion in which three lives are involved in the survivorship, p. 40. Muribong, a pleasant and healthy situation, p. 82. The soil, rich and fertile, produces good crops, ibid. Muscovy talc, a very perfect non-conductor; capable of being divided into plates of less thickness than a two-hundredth part of an inch; in consequence of its great capacity gives very strong electric shocks; and its laminae, contrary to the assertion of Becarria, are naturally in strong opposite states of electricity, and flash to each other when torn asunder in the dark, p. 285. One solid inch of Muscovy talc contains electricity enough to charge a conductor of 7 inches diameter, and 135 feet long, so high as to give a nine-inch spark at least, p. 286. N. Naja, a species of serpent, very venomous, p. 25. Natron, phosphorated, produces more cold by solution in the diluted nitrous acid, than the vitriolic natron, p. 208. Vitriolated natron, added to marine acid, undiluted, produces very nearly as great a degree of cold as when mixed with the diluted nitrous acid, p. 210. Nebulae and clusters of stars, catalogue of a thousand, p. 236—254. See Tables. Nicholson, Mr. William, on electricity, p. 265. Nitre, spirit of, experiments on the phlogistication of, p. 139. Light only capable of giving colour to spirit of nitre, contained in phials with ground stoppers, p. 140. Experiment proving that heat and not light gives colour to spirit of nitre, ibid. Spirit of nitre, in its most dephlogisticated state, consists of a proper saturation of the acids with phlogiston, p. 289. Experiment on spirit of nitre, p. 291. Nitrous air. See Air. O. Objections to the experiments and observations relating to the principle of acidity, the composition of water, and phlogiston, considered; with further experiments and observations on the same subject, p. 7. Observations and experiments on the principle of acidity, the composition of water, and phlogiston, p. 7. Observations on the class of animals called, by Linnæus, Amphibia; phibia; particularly on the means of distinguishing those serpents which are venomous from those which are not so, p. 21. Observations on the dryness of the year 1788, p. 37. Observations on a comet, p. 151. Observations and experiments on electricity, p. 265. Further observations relating to phlogiston, p. 289. Ovaria in women subject to a great variety of changes, p. 71. Many of these changes similar to those which take place in other parts of the body, ibid. Ovaria in women have some power within themselves of taking on a process which is imitative of generation, without any previous connection with a male, p. 72. Ovarium, account of a particular change of structure in the human, p. 71. Natural substance of an ovarium changed into a fatty mass intermixed with hair and teeth, ibid. The growth of hair and teeth in the ovarium supposed by Dr. Tyson to be a luxus naturae, ibid. note. P. Pagina, productions of, p. 84. Paragbon, its soil rich, and abounding with pasture, p. 88. Its productions, ibid. Colder here at all seasons than at Taffesudon, p. 89. Iron stones found near Paragbon, and one spring highly impregnated with this mineral, ibid. Phlogiston, experiments relating to the doctrine of, p. 295. Phosphorus, after the ascension of it in dephlogisticated air, there is a considerable quantity of fixed air in the residuum, p. 16. Piazzi, Rev. Joseph, result of calculations of the observations made at various places of the eclipse of the sun, which happened June 3, 1788, p. 55. Point. A force acting at a given point may be resolved by an infinite number of ways into two, three, or more forces acting at the same point, either in the same or different planes with the given force and each other; and, vice versa, any number of such forces acting in the same or different planes may be reduced into one, p. 185. Example proving this assertion, ibid. See Problem. Points in electricity, experiments on the action of, pp. 281, 282. The effects of points depend on the remoteness of their extremities from the other parts of the conductor, p. 282. Portrait of a Gentle boy, p. 156. Precipitate, per se, yields no fixed air by heat, p. 12. Precepts, list of, made to the Royal Society from November 1788 to July 1789, p. 314. Priestley, Rev. Dr. Joseph, objections to the experiments and observations relating to the principle of acidity, the composition of water, and phlogiston, considered; with further experiments and observations on the same subject, p. 7. On the phlogisticatio tion of spirit of nitre, p. 139. On the transmission of acids through an hot earthen tube, and further observations relating to phlogiston, p. 289. Problems. If the ages of three persons be given, to determine, from any table of observations, the value of the sum payable on the contingency of the last person's surviving the second, provided the life of the first shall be then extinct, p. 41. This problem solved and demonstrated, ibid. I. Given the law of attraction of each of the parts of a given line in terms of their distance from a given point; to find the attraction of the whole line on the point, p. 186. II. III. Given the attraction of each of the parts of a given surface in terms of their distance from a given point, and an equation expressing the relation between an abscissa and its correspondent ordinates of the surface; to find the attraction of the surface on the given point, p. 187. Also, to find the attraction of a given solid on a given point, p. 189. IV. Given an equation expressing the relation between two abscissae and their correspondent ordinate of a solid; to find its solid contents contained between two values of its first abscissa, p. 194. V. Given an equation expressing the relation between the two abscissae of a solid, and the correspondent ordinates; to transform the first abscissa into any other, p. 196. Prussian blue generally supposed to be a calx of iron super-saturated with phlogiston, though supposed by some to have acquired something that is of the nature of an acid, p. 298. The quantity of fixed air that Prussian blue would yield by mere heat determined, p. 299. Punukka, a root of pure lime-stone discovered here by Mr. Saunders, p. 83. Abundance of fire-wood in this part of the country, p. 83. The houses of this country are lofty, and the timbers substantial, but the inhabitants are unacquainted with the use of lime, p. 83, 84. State of the thermometer here, p. 84. Quadrant of altitude, description of an improvement in the application of, to a celestial globe, for the resolution of problems dependent on azimuth and altitude, p. 1. Quicksilver, experiments on the congelation of, p. 199. Experiment proving that quicksilver may be frozen not only in England in summer, but even in the hottest climate, at any season of the year, p. 202. Another experiment illustrating the congelation of quicksilver, ibid. Another experiment on the congelation of quicksilver, p. 203. Quicksilver, being frozen and broken, afforded a beautiful appearance of flat plates converging towards a center, p. 204. Congealed quicksilver bore an exact resemblance, both in colour and plated structure, to sulphurated antimony, p. 205. Rain, a considerable defect of, in the year 1788, p. 37. The quantity of rain fallen at Kimbolton compared with that of the seven preceding years, ibid. Monthly state of rain for 1788, p. 38. Quantities of rain during the year 1788, p. 114—138. Register. Abstract of a register, of the barometer, thermometer, and rain, at Lyndon in Rutland; also of the rain at South Lambeth in Surrey, and at Selbourn and Fyfield in Hampshire, p. 162. Reichel, Baron, on a monster of the human species, p. 157. Remarks on the construction of the heavens, p. 212. Rock salt, universally used for all domestic purposes in Thibet, Boutan, and Naphaul, p. 97. S. Salts, neutral, which produce any remarkable degree of cold by solution in mineral acids, lose their freezing property, when deprived of their water of crystallization, p. 209. Sanba, productions of, p. 90. State of the thermometer at, ibid. Satellite. See Saturn. Saturn (the planet) has a sixth satellite revolving round it, p. 255. Saunders, Robert, on the vegetable and mineral productions of Boutan and Thibet, p. 79. Selab, here is a hot well much frequented by people with venereal complaints, rheumatism, and all cutaneous diseases, p. 94. State of the thermometer when immersed in the water of this well, ibid. Its water contains a portion of hepar sulphuris, ibid. Serpents, venomous fangs in, merely offensive weapons, p. 33. Situation of venomous fangs always in the anterior and exterior parts of the upper jaw, p. 34. All venomous serpents have only two rows of teeth, but all others have four, p. 35. Proportion of venomous serpents to others, as 1 to 10, p. 36. Simadar, its soil very barren and unpromising, p. 93. Its productions, ibid. Small-pox, not treated properly by the physicians of Thibet, p. 105. Smerton, Mr. John, description of an improvement in the application of the quadrant of altitude to a celestial globe, for the resolution of problems dependent on azimuth and altitude, p. 1. Springs, indications of, p. 154—156. Stars, catalogue of a thousand new nebulae and clusters of, p. 226—254. Every star supposed to be a sun, shining by its own native brightness, pp. 213, 214. Sulphur. By sending a steam over melted sulphur, a small quantity of inflammable air is procured, p. 15. Turbith mineral mixed with sulphur makes it yield vitriolic acid. acid air, ibid. Sulphur not that simple substance which the anti-phlogistians suppose it to be, but contains phlogiston, ibid. Sun, result of calculations of the observations made at various places of the eclipse of the sun, which happened on June 3, 1788, p. 55. Survivorship. On the method of determining, from the real probabilities of life, the value of a contingent reversion in which three lives are involved in the survivorship, p. 40. T. Tables. Table of the observations made at Greenwich, Loampit-hill, Oxford, Dublin, Mittau; Berlin, Vienna, Viviers, Perinaldo, Rouen, Milan, Bologna, and Padua, on the eclipse of the sun, which happened June 3, 1788, and of results deduced from the same, p. 62. Table representing observations made at Warsaw, Prague, Marseilles, Presmünster, and Bagdad, on the eclipse of the sun, which happened June 3, 1788, and results deduced from the same, p. 64. Meteorological journal for the year 1788, kept at the apartments of the Royal Society, for January, p. 114, 115. February, 116, 117. March, 118, 119. April, 120, 121. May, 122, 123. June, 124, 125. July, 126, 127. August, 128, 129. September, 130, 131. October, 132, 133. November, 134, 135. December, 136, 137. Table of the greatest, least, and mean heights of the thermometer without and within, and of the barometer; also observations of the quantities of rain, p. 138. Table containing indications of spring, p. 154—156. Table of a second thousand of new nebulæ and clusters of stars, p. 226—254. First class, bright nebulæ, p. 286. Second class, faint nebulæ, p. 220. Third class, very faint nebulæ, p. 238. Fourth class, planetary nebulæ, p. 246. Fifth class, very large nebulæ, p. 248. Sixth class, very compressed and rich clusters of stars, p. 250. Seventh class, pretty much compressed clusters of large or small stars, p. 251. Eighth class, coarsely scattered clusters of stars, p. 253. Takui, its productions, p. 94. Talc. See Muscovy Talc. Tar-lake, a bituminous lake in the island of Trinidad, p. 65. Called by the French La Bray, from the resemblance to, and answering the intention of, ship pitch, ibid. Situate in the leeward-side of the island, on a point of land which extends into the sea about two miles, ibid. Situation similar to a Savannah, p. 66. Its colour, and even surface, present at first the aspect of a lake of water, ibid. Of a circular form, and about three miles in circumference, ibid. Its common consistence is that of pit-coal, pho-coal, the colour rather greyer, very friable, and, when liquid, of a jet black colour, p. 67. Some parts of the surface covered with a thin and brittle scoria, a little elevated, ibid. Calcined earth mixed with some parts of its common substance, ibid. The bituminous substance of this lake supposed to be the bitumen asphaltum Linnæi, p. 68. Its substance rendered ductile by heat; and, mixed with a little grease or common pitch, is much used for the bottoms of ships, ibid. Supposed to be a preservative against the Borer, ibid. Tashidun, productions of, p. 85. Tashidun lower than the level of Paragon, p. 89. The capital of Boutan, p. 111. Thermometer, state of, between Bahar and Buxaduar, p. 80. State of it at Buxaduar, p. 81. Its state at Punakha, p. 84. Its state at Chepia, ibid. Its state at Sanha, p. 90. Its state at Duina, p. 92. Its state at Tiffoolumboo, p. 97, 98. State of the thermometer at London during the year 1783, p. 114—138. Thibet, the hills in this country have, from their general appearance, strong marks of containing those fossils which are inimical to vegetation, p. 95. Tincal, which is afterwards refined into Borax, is found in inexhaustible quantities in Thibet, p. 96. Rock salt found in great abundance in this country, ibid. Diseases of, p. 98—106. Method of preparing mercury in Thibet, p. 100. The physicians of this country do not treat the small-pox properly, their whole attention being to preserve themselves from the disease rather than to assist those who are infected with it, p. 105. All communication with those who have the small-pox strictly forbidden, ibid. Hot baths used by the inhabitants of Thibet in many disorders, ibid. Tincal, found in inexhaustible quantities in Thibet, p. 96. The lake where tincal is collected about fifteen days journey from Tiffoolumboo, ibid. Tincal deposited or formed in the bed of a lake; dug up in large masses, p. 97. Tincal is found only in shallow water, on the borders of the lake, ibid. Used in Thibet for solder, and to promote the fusion of gold and silver, ibid. Tiffoolumboo, productions of, p. 94. Soil, ibid. State of the thermometer at, pp. 97, 98. The capital of Thibet, p. 111. Trinidad, account of a bituminous lake or plain in the island of, p. 65. In several parts of the woods in this island are hot springs, p. 69. Turbit mineral, being mixed with sulphur, produces vitriolic acid air, p. 15. See Sulphur. V. Values, &c. on the method of correspondent, p. 166. The method of correspondent values easily affords a resolution of the problems contained in Mr. Brigg's or Sir Isaac Newton's method of differences, p. 177. Venereal disease, frequent in Thibet, p. 100. Method of treating that disorder in Thibet, p. 101. Vision, an attempt to explain a difficulty in the theory of, p. 256. Experiment illustrating the theory of vision, p. 261. Vitriol, oil of, in its most dephlogisticated state, consists of a proper saturation of the acid with phlogiston, p. 289. Volatile vitriolic acid contains the proper element of dephlogisticated air, p. 292. Volta's opinion, that a point in electricity is the coating to an infinitely small plate of air, erroneous, p. 281. W. Walker, Richard, on the congelation of quicksilver in England, p. 199. Waring, Dr. on the method of correspondent values, &c, p. 166. On the resolution of attractive powers, p. 185. Water, the decomposition of, by means of iron, a fallacy, p. 17. A great want of water on the close of the year 1788 universally felt, p. 37. Wolf. See Letter. FROM THE PRESS OF JOHN NICHOLS. Vol. LXXIX.