Front Matter

PHILOSOPHICAL TRANSACTIONS, OF THE ROYAL SOCIETY OF LONDON. VOL. LXXI. For the Year 1781. PART I. LONDON, SOLD BY LOCKYER DAVIS, AND PETER ELMSLY, PRINTERS TO THE ROYAL SOCIETY. MDCCLXXXI. ADVERTISEMENT. The Committee appointed by the Royal Society to direct the publication of the Philosophical Transactions, take this opportunity to acquaint the Public, that it fully appears, as well from the council-books and journals of the Society, as from repeated declarations, which have been made in several former Transactions, that the printing of them was always, from time to time, the single act of the respective Secretaries, till the Forty-seventh Volume: the Society, as a body, never interesting themselves any further in their publication, than by occasionally recommending the revival of them to some of their Secretaries, when, from the particular circumstances of their affairs, the Transactions had happened for any length of time to be intermitted. And this seems principally to have been done with a view to satisfy the Public, that their usual meetings were then continued for the improvement of knowledge, and benefit of mankind, the great ends of their first institution by the Royal Charters, and which they have ever since steadily pursued. But the Society being of late years greatly enlarged, and their communications more numerous, it was thought adviseable, that a Committee of their members should be appointed to reconsider the papers read before them, and select out of them such, as they should judge most proper for publication in the future Transactions; which was accordingly done upon the 26th of March 1752. And the grounds of their choice are, and will continue to be, the importance and singularity of the subjects, or the advantageous manner of treating them; without pretending to answer for the certainty of the facts, or propriety of the reasonings, contained in the several papers so published, which must still rest on the credit or judgment of their respective authors. It is likewise necessary on this occasion to remark, that it is an established rule of the Society, to which they will always adhere, never to give their opinion, as a body, upon any subject, either of Nature or Art that comes before them. And therefore the thanks, which are frequently proposed from the chair, to be given to the authors of such papers, as are read at their accustomed meetings, or to the persons through whose hands they receive them, are to be considered in no other light than as a matter of civility, in return for the respect shewn to the Society by those communications. The like also is to be said with regard to the several projects, inventions, and curiosities of various kinds, which are often exhibited to the Society; the authors whereof, or those who exhibit them, frequently take the liberty to report, and even to certify in the public newspapers, that they have met with the highest applause and approbation. And therefore it is hoped, that no regard will hereafter be paid to such reports, and public notices; which in some instances have been too lightly credited, to the dishonour of the Society. CONTENTS OF VOL. LXXI. PART I. I. A NATURAL History and Description of the Tyger-cat of the Cape of Good Hope. By John Reinhold Forster, LL.D. F. R. and A. S. page 1 II. Experiments and Observations on the specific Gravities and attractive Powers of various saline Substances. By Richard Kirwan, Esq. F. R. S. p. 6 III. Account of the violent Storm of Lightning at East-bourn, in Sussex, Sept. 17, 1780; communicated by Owen Salisbury Brereton, Esq. F. R. and A. S. p. 42 IV. An Account of the Harmattan, a singular African Wind. By Matthew Dobson, M.D. F.R.S.; communicated by John Fothergill, M.D. F.R.S. p. 46 V. Essay on a new Method of applying the Screw. By Mr. William Hunter, Surgeon; communicated by Lieutenant General Melville, F.R.S. p. 58 VI. An Account of the Turkey. By Thomas Pennant, Esq. F. R. S.; communicated by Joseph Banks, Esq. P. R. S. p. 67 VII. Account of a Nebula in Comâ Berenices. By Edward Pigott, Esq. In a Letter to Nevil Maskelyne, D. D. F. R. S. and Astronomer Royal. p. 82 VIII. Double Stars discovered in 1779, at Frampton-house, Glamorganshire. By Nathanael Pigott, Esq. F. R. S. Foreign Member of the Academies of Brussels and Caen, and Correspondent of the Royal Academy of Sciences at Paris; communicated by Nevil Maskelyne, D. D. F. R. S. and Astronomer Royal. p. 84 IX. An Account of the Ganges and Burramputer Rivers. By James Rennell, Esq. F. R. S.; communicated by Joseph Banks, Esq. P. R. S. p. 78 X. Astronomical Observations on the Rotation of the Planets round their Axes, made with a View to determine whether the Earth's diurnal Motion is perfectly equable. In a Letter from Mr. William Herschel of Bath to William Watson, M. D. F. R. S. p. 115 XI. Some Account of the Termites, which are found in Africa and other hot Climates. In a Letter from Mr. Henry Smeathman, of Clement's Inn, to Sir Joseph Banks, Bart. P. R. S. p. 139 XII. An Account of several Earthquakes felt in Wales. By Thomas Pennant, Esq. F. R. S. in a Letter to Sir Joseph Banks, P. R. S. p. 193 XIII. Extract of a Letter from the Right Honourable Philip Earl Stanhope, F. R. S. to Mr. James Clow, Professor of Philosophy in the University of Glasgow. Dated Chevening, February 16, 1777. p. 195 XIV. Extract of Two Meteorological Journals of the Weather observed at Nain in 57° North Latitude, and at Okak in 57° 20' North Latitude, both on the Coast of Labrador. Communicated by Mr. De la Trobe. p. 197 XV. A Meteorological Journal kept at the House of the Royal Society, by Order of the President and Council. p. 197 THE LIST OF THE ROYAL SOCIETY. MDCCLXXXI. His Sacred Majesty King GEORGE III. Patron. His Sac. Maj. STANISLAUS AUGUSTUS, King of POLAND. His Sacred Majesty CHRISTIAN VII. King of DENMARK. His Royal Highness WILL. HEN. Duke of Gloucester. His most Serene Highness CHRIST. FRED. CHARLES ALEX. Margrave of BRANDENBURG Anspach and BAYREUTH. His most Serene Highness CHARLES WILLIAM FERDINAND Duke of BRUNSWICK. His most Serene Highness CHARLES Margrave of BADEN. His most Serene Highness PETER Duke of COURLAND. THE PRESENT COUNCIL. Sir JOSEPH BANKS, Bart. President, F.A.S. Trust. Br. Mus. Ac. Imp. Petrop. R. Holm. et Madrit. Soc. R. Gotting. Lund. Gedan. Rotterd. et Nat. Scrutat. Berolin. Socius, Acad. R. Par. Cer. Sir George Baker, Bart. F.A.S. Physician to her Majesty. Sir James Burrow, Knt. V. P. F. A. S. Soc. Antiqu. Cassell. Soc. John Campbell, Esq. Vice Admiral of the White. 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Sir Edward Wilmot, Bt. Physician to his Majesty. John Wilmot, Esq. Mr. Benjamin Wilson, Imp. Ac. Petr. Soc. R. Upf. & Inst. Bonon. Soc. B 2 William HOME MEMBERS. William Windham, Esq. Edward Earl Winterston. John Winthrop, Esq. Sir Clifton Wintringham, Bt. Physician to his Majesty. Mr. George Witchell, Master of the Royal Academy at Portsmouth. Nath. Matthew Wolf, M. D. [Soc. Phys. Gedan. Soc.] The Rev. Francis Wollaaston, LL. B. The Rev. George Wollaaston, D. D. Thomas Wood, Esq. Rt. Hon. Sir Rich. Worfley, Bt. F. A. S. M. P. Mr. Peter Woulfe. Daniel Wray, Esq. F. A. S. Trust. Br. Mus. Richard Wright, M. D. William Wright, M. D. Mr. John Wyatt. The Rev. William Wyatt, M. A. Hon. John Yorke, M. P. Arthur Young, Esq. Sir William Young, Bart. FOREIGN MEMBERS. D. Michael Adanson, Reg. Sc. Acad. Par. Soc. D. Joh. Baptista Albertini, Princeps Sanseverinus. D. Joh. d'Alembert, Reg. Sc. Acad. Paris. & Berolin. Soc. D. Joh. Nic. Seb. Allamand, Phil. Prof. Lugduno-Batav. D. Carolus Allioni, M. 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Taurin. Caesar Franc. Caffini de Thury, R. S. A. Parif. & Berol. Soc. Joh. Castiglione, Ac. R. Sc. Berol. Soc. R. Caumont, M.D. Paris. Paul Celestia, Nobil. Genoensis. Jof. Bern. Marchio de Chabert, R. S. A. Parif. Soc. Joh. Bapt. de la Chapelle, Parisiensis. Lud. Mar. Jos. d'Albert d'Ailly, Dux de Chaulnes. Joh. Franc. Cigna, M. D. Taurinensis. Franc. Gabr. Coyer, Parif. Lud. Joh. Mar. Daubenton, M. D. A. R. S. Par. & Ber. S. Petrus Davila, Hispanus. A. Georgius Eckhard, Hagae Com. Leonardus Euler, Acad. Imp. Petrop. Soc. Joh. Baptist. Faget, Parisiensis. Joh. Bapt. de Feronce, Conf. Aul. Brunf. Bened. Ferrner, Ord. de Stella Pol. Eques, R. A. Sc. Stockh. Soc. Samuel Formey, Reg. Sc. Ac. Ber. Sec. perp. Joh. Paul Grand Jean de Fouchy, R. S. Ac. Par. perp. hon. P. Paul. FOREIGN MEMBERS. P. Paul. Frisi, Prof. Math. Mediol. D. Joseph. Gaertner, M. D. Wurtemberg. D. Car. Hyacinth. Ant. Dux de Gallean, Princ. S. R. I. D. Joh. Petr. Grosley, A. R. Insc. Par. Soc. D. Joh. Paul. de Gua de Malves, Reg. Sc. Acad. Paris. Soc. D. Octavian. de Guasco, Abbas; Nob. Pedemont. D. Joseph. de Guignes, Int. Lin. Orient. Reg. Chrift. D. H. Lud. du Hamel du Monceau, R. S. A. Par. S. D. Sam. Christian. Hollmannus, Philosoph. Prof. Gotting. D. Martin. Hubner, Conf. R. Daniae, &c. D. Franc. Jacquier, Ord. Min. Rom. Math. Prof. D. Teffer Samuel Kuckhan, Jamaicensis. D. Johannes Dux de La Foes, Lusitanus. D. Jeron. de la Lande, R. Sc. Ac. Par. & Ber. Soc. D. Joh. Philip. de Limbourg, M. D. Spadensis. D. Ferdinandus S. R. I. Princeps Lobkowitz. D. Johannes Andreas de Luc, Genevensis. D. Petr. de Lyonet, J. U. D. Hagae Com. D. Xaverius Manetti, Prof. Med. & Bot. & Ac. Flor. Sec. D. Martin. de Mello é Castro, Reg. Luf. à Sec. & Conf. D. Car. Messier, Reg. Acad. Sc. Paris. Soc. D. Frid. Christ. Meuschen, Ac. Imp. Nat. Cur. Soc. Hagae Com. D. Adam. Gottl. Moltke, Comes de Breg. Conf. Int. R. Dan. D. Gulielm. le Monnier, M. D. Reg. Ac. Sc. Par. Soc. D. Petr. Carolus le Monnier, Reg. Sc. Ac. Par. Soc. D. —— Secondat de Montesquieu, Burdegalensis. D. Franc. Clement. Morand, M. D. Reg. Sc. Ac. Par. Soc. D. Laurent. Morosini, Nob. Venet. D. Ger. Fred. Müller, Historiographus Imp. Russ. D. Ludov. Jul. Dux Nivernensis, Par Galliae, &c. D. Casimir FOREIGN MEMBERS. D. Casimir Gomez Ortega, M.D. Prof. Reg. Botan. Madrit. D. Camillus Paderni, Romanus. D. Petr. Simon Pallas, M.D. Hist. Nat. Prof. Petrop. D. Martin Poczobut, Astron. Reg. Poloniae. D. Petrus Poissonier, Acad. Imp. Petrop. Soc. D. Seb. Jof. Marchio de Pombal, Lusitanus. D. Joseph Raulin, M.D. Parisiens. D. —— Raynal, Parisiens. D. Sigif. Comes de Redern, Praef. Acad. Reg. Berolin. Princeps Abondio Rezzonico, Romanus. D. Fulcus Marchio Rinuccinus, Nob. Florentinus. D. Johannes le Roy, Ac. R. Sc. Par. Soc. D. David Van Royen, Bot. Prof. Lugd. Bat. D. Georg. Ludov. le Sage, Genevensis. D. Jof. Fr. Wicardel de Fleury, Comes de Saluce, Pedem. D. Jacob. Christ. Schaeffer, S.T.D. Ratisbonensis. D. Joh. de Schuvaloff, Cubicular, suprêm. Imperatr. Russ. D. Achill. Petr. Dio. du Sejour, Acad. Reg. Par. Soc. D. Lazarus Spallanzani, Hist. Nat. Prof. Paviae. D. Jacobus de Stehelin, Ac. Imp. Petrop. Soc. D. Simon Stratico, Episcopus in Dalmatia. D. Joh. Joseph Sue, M.A. Parisiensis. D. S. A. D. —— Tiffot, M.D. Lausannensis. D. Jof. Toaldo, Profess. Astron. Patav. D. Joseph Ignat. de Torres, M.D. Hispan. D. Abrah. Trembley, Genevensis. D. Ludov. Comes de Treffan, Reg. Sc. Acad. Par. Soc. D. T. Tronchin, M.D. Reg. Sc. Acad. Par. Soc. D. Marsilius Ventury, Nob. Par. Reg. Hisf. à Cons. D. Petrus de Vigny, Reg. Ac. Arch. Par. Soc. D. Danse de Villoison, A.R. Insc. Par. Soc. D. Anton. FOREIGN MEMBERS. Anton. de Ulloa, Praefectus Clavis Reg. Hispan. Carolus Walmsley. Petr. Wargentin, Ord. de Stella Pol. Eques, Ac. R. Sc. Stockh. Sec. perp. Joh. Hen. Georg. S. R. I. Comes de Werthern. Joh. Hen. Winkler, Lipsiensis. Eustatius Zanotti, Astronom. Bonon. CONTENTS OF VOL. LXXI. PART II. XV. NEW Experiments upon Gun-powder, with occasional Observations and practical Inferences; to which are added, an Account of a new Method of determining the Velocities of all Kinds of Military Projectiles, and the Description of a very accurate Eprouvette for Gun-powder. By Benjamin Thompson, Esq., F. R. S. Page 230 XVI. Account of a luminous Appearance in the Heavens. By Mr. Tiberius Cavallo, F. R. S. in a Letter to Sir Joseph Banks, Bart. P. R. S. p. 329 XVII. Account of an Earthquake at Hafodunos near Denbigh. By John Lloyd, Esq. F. R. S. in a Letter to Sir Joseph Banks, Bart. P. R. S. p. 331 XVIII. On the Heat of the Water in the Gulf-stream. By Charles Blagden, M. D. Physician to the Army, F. R. S. p. 334 XIX. Account of the Appearance of the Soil at opening a Well at Hanby in Lincolnshire. In a Letter from Sir Henry C. Englefield, Bart. F. R. and A. S. to Sir Joseph Banks, Bart. P. R. S. p. 345 XX. Astronomical Observations made by Nathaniel Pigott, Esq. F. R. S. Foreign Member of the Academies of Brussels and Caen, and Correspondent of the Academy of Sciences at Paris. Communicated by Sir Henry C. Englefield, Bart. F. R. and A. S. p. 347 XXI. Abstract of a Register of the Barometer, Thermometer, and Rain, at Lyndon, in Rutland, 1780. By Thomas Barker, Esq. p. 347 XXII. Some Calculations of the Number of Accidents or Deaths which happen in consequence of Parturition; and of the Proportion of Male to Female Children, as well as of Twins, monstrous Productions, and Children that are dead-born; taken from the Midwifery Reports of the Westminster General Dispensary: with an Attempt to ascertain the Chance of Life at different Periods, from Infancy to Twenty-six Years of Age; and likewise the Proportion of Natives to the rest of the Inhabitants of London. In a Letter from Robert Bland, M.D. Physician-Man-Midwife to the Westminster General Dispensary, to Samuel Foart Simmons, M.D. F.R.S. p. 355 XXIII. Account of a Child who had the Small-pox in the Womb. In a Letter from William Wright, M.D. F.R.S. to John Hunter, Esq. F.R.S. p. 372 XXIV. Natural History of the Insect which produces the Gum Laccá. By Mr. James Kerr, of Patna; communicated by Sir Joseph Banks, P.R.S. p. 374 XXV. Account of a Phenomenon observed upon the Island of Sumatra. By William Marsden, Esq.; communicated by Sir Joseph Banks, P.R.S. p. 383 XXVI. Farther Experiments on Cold, made at the Macfarlane Observatory belonging to Glasgow College. In a Letter from Patrick Wilton, M.A. to the Rev. Nevil Maskelyne, D.D. F.R.S. and Astronomer Royal. p. 386 XXVII. A general Theory for the Mensuration of the Angle subtended by Two Objects, of which One is observed by Rays after Two Reflections from plane Surfaces, and the other by Rays coming directly to the Spectator's Eye. By George Atwood, M.A. F.R.S. p. 395 XXVIII. An Account of the Ophidium barbatum LINNEI. By P.M. Augustus Broussonet, M.D.; communicated by Sir Joseph Banks, Bart. P.R.S. p. 436 XXIX. A further Account of the Usefulness of washing the Stems of Trees. By Mr. Robert Marsham, of Stratton, F.R.S. p. 449 XXX. Hints relating to the Use which may be made of the Tables of natural and logarithmic Sines, Tangents, &c. in the numerical Resolution of affected Equations. By William Wales, Wales, F. R. S. and Master of the Royal Mathematical School in Christ's Hospital. XXXI. Experiments on the Power that Animals, when placed in certain Circumstances, possess of producing Cold. By Adair Crawford, M. D.; communicated by Sir Joseph Banks, Bart. P. R. S. XXXII. Account of a Comet. By Mr. Herschel, F. R. S.; communicated by Dr. Watson, Jun. of Bath, F. R. S. p. 494 XXXIII. A Letter from Mr. Joseph Willard to the Rev. Dr. Maskelyne, Astronomer Royal, concerning the Longitude of Cambridge in New England. XXXIV. An Account of some Thermometrical Experiments; containing, I. Experiments relating to the Cold produced by the Evaporation of various Fluids, with a Method of purifying Ether. II. Experiments relating to the Expansion of Mercury. III. Description of a Thermometrical Barometer. By Tiberius Cavallo, F. R. S. who was nominated by the President and Council to prosecute Discoveries in Natural History, pursuant to the Will of the late Henry Baker, Esq. F. R. S. p. 509 PRESENTS MADE TO THE ROYAL SOCIETY From November 1780 to July 1781; WITH The NAMES of the DONORS. Donors. Presents. 1780. Nov. 9. Academy of Sciences at Paris. Memoires de l'Academie Royale des Sciences, pour 1773, 1774, 1775, 1776, 4° Recueil des Machines approuvées par l'Academie, tom. 7. 4° Society of Sciences at Gottingen. Commentationes Societatis Regiae Scientiarum Gottingensis, vol. 2. 4° Arthur Young, Esq. A Tour in Ireland, in the Years 1776, 1777, 1778, 2 vols. 8° Mr. Henry Clarke. A Dissertation on the Summation of infinite converging Series, with Algebraic Divisors, translated from the Latin of A. M. Lorgna, with Notes and Observations. 4° The Rationale of Circulating Numbers. 8° Practical Perspective, vol. I. 8° Dr. Forster. Chemical Observations and Experiments on Air and Fire. 8° John Bernoulli. Supplement au Recueil pour les Astronomes. 8° Mr. Magellan. Genera Plantarum vocabulis Characteristicis definita. 4° Board of Longitude. The Nautical Almanac for the Year 1785. 8° Nat. Gott. Lecke. Anfangsgründe der Naturgeschichte, erster theil. 8° Donors. 1780 N. v. g. Nat. Gott. Leke. 23. Mr. Nichois. Edward Johnston, M. D. Dec. 7. Society of Sciences at Upsal. Royal Academy of Sciences at Stockholm. Prof. Zimmerman. Mr. Giral. 21. Mr. Phil. Hurlock. Mr. Le Baron de Marivetz. Mr. Nicolls. 1781 Jan. 11. Mr. Hope. Mr. Gough. 25. Mr. W. Wales. Feb. 8. Andrew Duncan, M. D. Dr. Du-Pui. Dr. Caldani. 22. Palatine Academy. Mar. 1. Mr. John Landen. 15. Edward Waring, M. D. Mar. 22. Thomas Pennant, Esq. Apr. 26. Seguin Jackson, M. D. Presents. Account of a Species of Tenia that breeds in the Head of Sheep. 8° Bibliotheca Topographica Britannica, No I. Numismatum Romanorum Imperatorum et Imperaticum Series et Valor, a Rogero Gale. 4° Dissertatio Medica de Febre puerperali. 4° Nova Acta Regiae Societatis Scientiarum Upsaliensis, tom. 3. 4° Transactions of the Royal Academy of Sciences of Stockholm for 1779. 4° Traité de l'Élasticité de l'Eau et d'autres Fluides. 8° Memoire sur les Constructions des Ponts. 4° Commentarii de Rebus in Scientia Naturali et Medicina Geftis, 21 vols. Lipsiae. 8° Physique du Monde, par Mons. le Baron de Marivetz et Mr. Gouffier. 4° Franci Nicolphi vita, scriptore Toma Lawrence. 4° The Second Part of the 16th vol. of the Transactions of the Academy of Sciences of Haerlem. 8° Travels through Spain, by John Talbot Dillon, Knight and Baron of the Sacred Roman Empire. 4° Enquiry into the present State of Population in England and Wales. 8° Heads of Lectures on the Theory and Practice of Physic. 8° Dissertatio Medica de Homine dextro et sinistro. 8° Institutiones Physiologice. 8° Monitum ad Observatores Societatis Meteorologice Palatinae. 4° Observations on converging Series. 8° Proprietates Algebraicarum Curvarum. 4° History of Quadrupeds, 2 vols. 4° A Treatise on Sympathy. 8° Donors Donors. May 10. Thomas Pennant, Esq. 24. Mr. Gualandris. Mr. Thorrowgood. Mr. Peter Dollond. 31. Board of Longitude. Rev. John Howlett. Mr. Frederick Mallet. June 14. Richard Paul Jodrell, Esq. Sir Richard Worsley, Bart. Dr. Priestley. Dr. Pulteney. Mr. Thomas Henry. 28. Mr. Heocfar. Alexander Dalrymple, Esq. Dr. Simmons. July 5. John Elliot, M.D. Presents. Genera of Birds. 4° Lettere Odeporiche. 8° A Description of a new Watch Key. 8° An engraven Portrait of the late Mr. Dollond, F. R. S. The Nautical Almanac for 1786. 8° Tables requisite to be used with the Nautical Ephemeris for finding the Latitude and Longitude. 8° A Sexagesimal table, exhibiting at sight the Result of any Proportion where the Terms do not exceed Sixty Minutes, with Precepts and Examples, by Michael Taylor. 4° An Examination of Dr. Price's Essay on the Population of England and Wales. 8° A mathematical Description of the Earth, and Eight Mathematical Theses. Nova Analysis Æquationum Secundi, tertii et quarti gradus. 4° Illustrations on the Ion and Bacchæ of Euripides, 2 vol. 8° The History of the Isle of Wight. 4° Experiments and Observations relating to various Branches of Natural Philosophy. 4° A general View of the Writings of Linnaeus. 8° Account of a method of preserving Water at Sea from Putrefaction, and of restoring to the Water its original Pleasantness and Purity. A specimen of Sal sedativum Naturale Etruscum. Two Maps of the East India Company's Lands on the Coast of Coromandel, together with an Explanation. 4° The Elements of Anatomy, and the Animal Economy, 2d edit. 8° A complete Collection of the Medical and Philosophical Works of John Fothergill, M.D. 8° DIPLOMATA ET STATUTA REGALIS SOCIETATIS LONDINI, Pro Scientiâ Naturali Promovendâ: Jussu Præsidis et Concilii edita. MDCCLXXVI. CONTENTS. DIPLOMATA. PRIMA. — — p. 1 Secunda. — — p. 19 Tertia. — — p. 40 Licence to purchase in Mortmain. — — p. 57 STATUTES of the ROYAL SOCIETY. Preface. p. 1 CHAP. I. Of the Election and Admission of Fellows. p. 9 CHAP. II. Of the Obligation to be subscribed. p. 13 CHAP. III. Of the Payments by the Fellows to the Society. p. 14 CHAP. IV. Of the Death or Recess of any Fellow. p. 16 CHAP. V. Of the Causes and Form of Ejection. p. 17 CONTENTS. CHAP. VI. Of the Election of the Council and Officers. p. 18 CHAP. VII. Of the President. p. 24 CHAP. VIII. Of the Treasurer and his Accompts. p. 25 CHAP. IX. Of the Secretaries. p. 28 CHAP. X. Of the Clerk, Librarian, Keeper of the Repository, and Housekeeper. p. 30 CHAP. XI. Of the ordinary Meetings of the Society. p. 36 CHAP. XII. Of the selecting of Papers laid before the Society, in order for Publication. p. 38 CHAP. XIII. Of the Manner of Publication of the Papers laid before the Society. p. 41 CHAP. XIV. Of the Books and Papers of the Society. p. 44 CHAP. XV. Of the Common Seal and Deeds. p. 47 CHAP. XVI. Of the making and repealing of Laws. p. 48 DIPLOMATA PRÆSIDI, CONSILIO, et SODALIBUS, REGALIS SOCIETATIS LONDINI, A REGIBUS Carolo Secundo et Georgio Primo, Data et conceffa. a 3