Front Matter

The only official reprint authorized by The Royal Society of London Printed in U.S.A. PHILOSOPHICAL TRANSACTIONS, GIVING SOME ACCOUNT OF THE Present Undertakings, Studies, and Labours, OF THE INGENIOUS, IN MANY Considerable Parts of the WORLD. VOL. XLIX. PART I. For the Year 1755. LONDON. Printed for L. Davis and C. Reymer, Printers to the Royal Society, against Gray's-Inn Gate, in Holbourn. M.DCC.LVI. PHILOSOPHICAL TRANSACTIONS. The CONTENTS. PART I. VOL. XLIX. I. De Pressionibus Ponderum in Machinis motis. Page 1. II. An Investigation of a General Rule for the Resolution of Isoperimetrical Problems of all Orders. By Mr. Thomas Simpson, F.R.S. p. 4. III. Part of a Letter from John Huxham, M.D. F.R.S. to W. Watson. F.R.S. in relation to the Effects of Lightning at Plymouth. p. 16. IV. A remarkable Case of a morbid Eye: By Mr. Edward Spry, Surgeon, at Plymouth, in Devonshire. p. 18. V. A Supplement to the Account of a distempered Skin, published in the 424th Number of the Philosophical Transactions. By Mr. Henry Baker, F.R.S. p. 21. VI. An Extract of the Substance of Three Letters from Isaac Jamineau, Esq; his Majesty's Consul at Naples, to Sir Francis Hoskins Eyles Stiles, Bart. and F.R.S. concerning the late Eruption of Mount Vesuvius. p. 24. CONTENTS. Extract of another Letter from Mr. Jamineau, the British Consul at Naples, to Sir F. H. Eyles Stiles, dated Decem. 21, 1754. p. 27. Extract of a Letter from the same Gentleman, to the same, dated Decem. 28, 1754. p. 28. VII. An Account of the Species of Plant, from which the Agaric, used as a Styptic, is prepared. By Mr. William Watson, F. R. S. p. 28. VIII. An Account of a Mountain of Iron Ore, at Taberg in Sweden, in a Letter to Mr. Peter Collinson, F. R. S. By Peter Ascanius, M. D. Translated from the Latin by Mr. Emanuel Mendes de Costa, F. R. S. p. 30. IX. An Account of an extraordinary Case of a Child. By Mr. Richard Guy, Surgeon. p. 34. X. Extracts of Two Letters from Mr. James Latterman, Student in Physic and Surgery, to Dr. Schloesser, now residing in London, concerning the Effects of the Agaric of the Oak, after some of the most capital Operations in Surgery. To which are added, Some remarkable Experiments made upon the Arteries of Horses, with the Powder of the Lycoperdon, or Lupi Crepitus; by Monsieur La Fosse, Farrier to the King of France. Communicated by Mr. Joseph Warner, F. R. S. Surgeon of Guy's Hospital. p. 36, 37. XI. A Letter from James Parsons, M. D. F. R. S. to Thomas Birch, D.D. Secret. R. S. concerning the Use of Lycoperdon, in stopping Blood after Amputations. p. 38. XII. An Account of the State of the Thermometer, on the 8th and 9th of February 1755, in a Letter to John Canton, M. A. F. R. S. from Henry Miles, D.D. F. R. S. p. 43. XIII. CONTENTS. XIII. An Account of some Cases of Dropsies, cured by sweet Oil: In a Letter from William Oliver, M.D. F.R.S. p. 46. XIV. Observationes Eclipsum Satellitum Jovis habita Ulissipone in Regio Collegio Beatissimae Virginis a Necessitatibus nuncupate, a Joanne Chevalier Cong. Oratorii Regalis & Societ. Lond. Socio, Anno 1754. p. 48. XV. An Account of those malignant Fevers, that raged at Rouen, at the End of the Year 1753, and the Beginning of 1754. By Mons. Le Cat, M.D. Professor of Anatomy and Chirurgery at Rouen, F.R.S. Member of the Royal Academy of Sciences at Paris, and perpetual Secretary of that at Rouen. p. 49. XVI. An Account of the Death of Mr. George William Richman, Professor of experimental Philosophy, a Member of the Imperial Academy of Sciences at Petersburg. Translated from the High-Dutch. p. 61. XVII. An Account of a Roman Inscription found at Malton in Yorkshire, in the Year 1753. By John Ward, L.L.D. Rhet. Prof. Gresh. and V.P.R.S. p. 69. XVIII. A Catalogue of the Fifty Plants from Chelsea Garden, presented to the Royal Society, by the worshipful Company of Apothecaries, for the Year 1754, pursuant to the Direction of Sir Hans Sloane, Baronet, Med. Reg. &c. Soc. Reg. nuper Praeses, by John Wilmer, M.D. Societatis Pharmaceut. Lond. Socius, Hort. Chel. Praefectus & Praelector Botan. p. 78. CONTENTS. XIX. A Letter to the Right Honourable George Earl of Macclesfield, President of the Royal Society, on the Advantage of taking the Mean of a Number of Observations, in practical Astronomy: By T. Simpson, F. R. S. p. 82. XX. An Account of the Success of Agaric, and the Fungus vinosus, in Amputations: By Mr. James Ford, Surgeon, of Bristol. p. 93. XXI. Queries sent to a Friend in Constantinople; by Dr. Maty, F. R. S.; and answered by his Excellency James Porter, Esq; his Majesty's Ambassador at Constantinople, and F. R. S. p. 96. XXII. Extracts of Two Letters to Thomas Hollis, Esq; concerning the late Discoveries at Herculaneum. p. 109. XXIII. Copy of a Letter from a learned Gentleman of Naples, dated February 25, 1755, concerning the Books and antient Writings dug out of the Ruins of an Edifice near the Site of the old City of Herculaneum; to Monsignor Cerati, of Pisa, F. R. S. sent to Mr. Baker, F. R. S. and by him communicated; with a Translation by John Locke, Esq; F. R. S. p. 112. XXIV. An Account of the several Earthquakes of late felt at Constantinople; by his Excellency James Porter, Esq; his Majesty's Ambassador at that Place; in a Letter to the Reverend Mr. Wetstein, F. R. S. dated February 15, 1755. p. 115. XXV. Letters of Henry Eeles, Esq; concerning the Cause of the Ascent of Vapour and Exhalation, and those of Winds; and of the general Phænomena CONTENTS. mena of the Weather and Barometer; to the Rev. Thomas Birch, D.D. Secr. R. S. p. 124. 126. 151. XXVI. Remarks upon a petrified Echinus of a singular kind, shewn to the Royal Society, April 24, 1755, by the Rev. Richard Pococke, LL. D. Archdeacon of Dublin, and F. R. S. found on Bunnan's-Land, in the Parish of Bovingdon in Hertfordshire, which is a Clay, and supposed to have been brought with the Chalk, dug out of a Pit in the Field. By James Parsons, M.D. and F. R. S. p. 155. XXVII. Two Letters concerning Toxicodendron. Let. I. From the Abbé Mazeas, F. R. S. to the Rev. Stephen Hales, D.D. F. R. S. Translated from the French, by James Parsons, M.D. and F. R. S. Let. II. From Mr. Philip Miller, F. R. S. to the Rev. Thomas Birch, D.D. Secret. R. S. p. 161. XXVIII. A Letter to the Right Honourable the Earl of Macclesfield, President of the Royal Society, concerning the Method of constructing a Table for the Probabilities of Life at London, from the Reverend William Brakenridge, D.D. and F. R. S. p. 167. XXIX. Some Account of a Sheep, shewed alive to the Royal Society, in November 1754, having a monstrous Horn growing from his Throat; the stuffed Skin of which, with the Horn in situ, is now in the Museum of the Society. By James Parsons, M.D. F. R. S. p. 183. XXX. A Dissertation upon the Cancer of the Eyelids, Nose, great Angle of the Eye, and its neighbour- neighbouring Parts, commonly called the Nolime-tangere, deemed hitherto incurable by both Antients and Moderns, but now shewn to be as curable as other Distempers. Addressed to the Royal Society of London by Mons. Daviel, consulting Surgeon in ordinary, and Oculist to the King; Master of Arts, and of Surgery at Marseilles; Royal Professor and Demonstrator of Anatomy of the same City; Member of the Academy of Sciences of Toulouse, Bologne, and that of Surgery of Paris; and translated from the French by James Parsons, M.D. and F.R.S. p. 186. XXXI. An Account of four Roman Inscriptions, cut upon three large Stones, found in a ploughed Field near Wroxeter in Shropshire, in the Year 1752: With some Observations upon them, by John Ward, LL.D. Rhet. Prof. Gresh. and V.P.R.S. p. 196. XXXII. Some Observations upon an American Wasps-Nest, shewn to the Royal Society: By Mr. Israel Mauduit, F.R.S. p. 205. XXXIII. An Extract of a Letter written by the Magistrates of the City of Mascali, in Sicily, and sent from their public Office to Naples, concerning a late Eruption of Mount Ætna. Translated from the Italian. p. 209. XXXIV. Some Account of the Charr-Fish, as found in North-Wales. In a Letter from the Rev. Mr. Farrington, of Dinas, near Caernarvon, to Mr. Thomas Collinson, of London. Communicated by Mr. Peter Collinson, F.R.S. p. 210. XXXV. CONTENTS. XXXV. A Method proposed to restore the Hearing, when injured from an Obstruction of the Tuba Eustachiana. By Mr. Jonathan Wathan, Surgeon, in Devonshire-Square. p. 213. XXXVI. Tentamen Chemicum de Calcis vivae Actione in Salem volatilern alcalinurn. Authore Johanne Alberto Schlosser, Ultrajectino, M.D. p. 222. XXXVII. An Account of a very remarkable Case of a Boy, who, notwithstanding that a considerable Part of his Intestines were forced out by the Fall of a Cart upon him, and afterwards cut off, recovered, and continues well. p. 238. XXXVIII. An Account of some Experiments on the Sensibility and Irritability of the several Parts of Animals; in a Letter from Richard Brocklesby, M.D. F.R.S. to the Rev. Thomas Birch, D.D. Secr. R.S. p. 240. XXXIX. An Account of Worms in Animal Bodies. In a Letter to Thomas Birch, D.D. Secr. R.S. from Frank Nicholls, M.D. Med. Reg. and F.R.S. p. 246. XL. An Account of some remarkable Insects of the Polype kind, found in the Waters near Brussels in Flanders. In a Letter to Tho. Birch, D.D. Secret. R.S. from T. Brady, M.D. Physician to his Highness Prince Charles of Lorraine. p. 248. XLI. A short Account of some new Astronomical and Physical Observations made in Asia; and communicated to Matthew Maty, M.D. F.R.S. by his Excellency Mr. Porter, his Majesty's Ambassador at Constantinople, and F.R.S. p. 251. CONTENTS. Extract of a French Letter, transmitted to his Excellency James Porter, Esq; by the English Consul at Aleppo. p. 252. XLII. Some Observations proving, that the Fœtus is in part nourished by the Liquor Amnii. By Malcolm Fleming, M.D. p. 254. XLIII. An Account of the Success of Agaric in Amputations, &c. in a Letter from Mr. William Thornhill, late Surgeon to the Infirmary at Bristol, to Robert Dingley, Esq; F.R.S. p. 264. XLIV. Luna defectus Elbis à Doctore Joanne Mendesio Sachetto Barbosa, Philosophiae & Medicinae Professore, Regiae Societatis Londinensis, Regalis Elbensis Nosocomii Medico, observatus Die 27--28 Martii, Anno 1755. Communicated by J. De Castro Sarmento, M.D. F.R.S. p. 265. XLV. A Letter to George Lewis Scot, Esq; F.R.S. concerning the Number of People in England; from the Reverend William Brakenridge, D.D. Rector of St. Michael Bassishaw, London, and F.R.S. p. 268. XLVI. An Attempt to explain two Roman Inscriptions, cut upon two Altars, which were dug up some time since at Bath. By John Ward, LL.D. Rhet. Prof. Greth. and V.P. R.S. p. 285. XLVII. An Account of a remarkable Echinus: By Gustavus Brander, Esq; F.R.S. p. 295 XLVIII. An Account of the Impression on a Stone dug up in the Island of Antigua, and the Quantity of Rain fallen there for Four Years: In a Letter from the Reverend Mr. Francis Byam to William Fauquier, Esq; F.R.S. p. 295. XLIX. CONTENTS. XLIX. A Letter to the Right Honourable George Earl of Macclesfield, President of the Royal Society, concerning the Stones mentioned in the preceding Article. By Mr. Arthur Pond, F.R.S. p. 297. L. An Account of the Effects of Lightning in the Danish Church, in Wellclose-Square. By Gustavus Brander, Esq; F.R.S. p. 298. LI. Electrical Experiments, made in pursuance of those by Mr. Canton, dated December 3, 1753; with Explanations by Mr. Benjamin Franklin. Communicated by Mr. Peter Collinson, F.R.S. p. 300. LII. Extract of a Letter concerning Electricity, from Mr. B. Franklin to Mons. Delibard, inclosed in a Letter to Mr. Peter Collinson, F.R.S. p. 305. LIII. A Letter concerning the Effects of Lightning at Darking in Surrey, from Mr. William Child to Mr. James Pitfold. Communicated by Mr. Peter Collinson, F.R.S. p. 309. LIV. An Account of the great Benefit of blowing Showers of fresh Air up through distilling Liquors. By Stephen Hales, D.D. F.R.S. p. 312. LV. An Account of the great Benefit of Ventilators in many Instances, in preserving the Health and Lives of People, in Slave and other Transport Ships. By Stephen Hales, D.D. F.R.S. p. 332. LVI. An Account of some Trials to cure the ill Taste of Milk, which is occasioned by the Food of Cows, either from Turnips, Cabbages, or autumnal Leaves, &c. Also to sweeten stinking Water, &c. By Stephen Hales, D.D. F.R.S. p. 339. CONTENTS. LVII. Extract of a Letter of Thomas Barker, Esq; to the Rev. James Bradley, D.D. Astronomer Royal, and F.R.S. concerning the Return of the Comet, expected in 1757, or 1758. p. 347. LVIII. An Account of an extraordinary and surprising Agitation of the Waters, though without any perceptible Motion of the Earth, observed in various Parts of this Island, both maritime and inland, on Novem. 1, 1755, chiefly about the Time that the more violent Commotions of both Earth and Waters so extensively affected many very distant Parts of the Globle: In several Letters transmitted to the Royal Society. Letter I. From Mr. John Robertson, F.R.S. to Tho. Birch, D.D. Secret. R.S. At Portsmouth in Hampshire. p. 351. Let. II. From Philip Carteret Webb, Esq; F.R.S. to Tho. Birch, D.D. Secr. R.S. In Sussex, and the Southern Parts of Surrey. p. 353. Let. III. From Swithin Adee, M.D. F.R.S. to Philip Carteret Webb, Esq; F.R.S. p. 357. Let. IV. From Swithin Adee, M.D. F.R.S. to Philip Carteret Webb, Esq; F.R.S. ibid. Let. V. From Mr. John Hodgson to Philip Carteret Webb, Esq; F.R.S. p. 358. Extract of Letter VI. From Cranbrook in Kent, to William Tempest, Esq; F.R.S. p. 360. Extract of Let. VII. Communicated by John Pringle, M.D. F.R.S. p. 360. Let. VIII. From Mr. Henry Mills to T. Birch, D.D. Secret. R.S. p. 361. Let. IX. An Account of the Agitation of the Water in Peerless-Pool, near Old Street, London. By Tho. Birch, D.D. Secr. R.S. p. 362. Let. X. CONTENTS. Let. X. An Account of the Agitation of the Water at Rochford in Essex, Nov. 1, 1755, in a Letter from the Rev. Mr. Thomlinson to the Rev. Dr. Sykes, D.D. Dean of Burien. Communicated by Tho. Birch, D.D. Secret. R.S. p. 364. Let. XI. From Mr. Richard Philips, Communicated by Lewis Crusius, D.D. F.R.S. In Berkshire, near Reading. p. 365. Let. XII. An Account of the same. Communicated by the Rev. John Blair, LL.D. F.R.S. p. 367. Let. XIII. In Oxfordshire, at Shirburn-Castle, the Seat of the Earl of Macclesfield, Pres. R.S. as appears by the following Account, communicated by his Son the Lord Viscount Parker, F.R.S. then upon the Spot. p. 368. Let. XIV. From John Huxham, M.D. F.R.S. to Mr. William Watson, F.R.S. In Devonshire and Cornwall; at Plymouth, Mounts-Bay, Penzance, &c. p. 371. Let. XV. From the Rev. W. Borlase, A.M. F.R.S. to the Rev. Charles Lyttleton, LL.D. Dean of Exeter. p. 373. Extract of Let. XVI. From Swanzey, dated Dec. 8, 1755. Communicated by the Rev. John Blair, LL.D. F.R.S. p. 379. Extract of Let. XVII. From Mr. Wm. Arderon, F.R.S. to Henry Baker, F.R.S. p. 380. Let. XVIII. To Mr. Wm. Arderon, F.R.S. from Mr. Tho. Barber in Yarmouth, concerning the Earthquake on Novem. 1. Communicated by Mr. Arderon. p. 380. Let. XIX. From the Rev. Mr. John Harrison, Rector of Hawkeshead in Cumberland, to the Right Rev. Dr. Edm. Keene, Ld. Bishop of Chester. p. 381. CONTENTS. Extract of Let. XX. From the Honourable and Rev. Dr. Spencer Cowper, Dean of Durham, to his Brother the Right Hon. William Earl Cowper, F. R. S. p. 385. Let. XXI. To Dr. John Stevenson, Physician at Edinburgh. Communicated by Dr. John Pringle, F. R. S. Scotland, at Loch Ness. p. 388. Extract of Let. XXII. From Sir James Colquhoun, of Lus, to Mr. Fletcher, Member of Parliament, dated Rosedoe, Dec. 8, 1755. Communicated by Dr. Pringle, F. R. S. At Loch Lommond. p. 390. Let. XXIII. Communicated by Richard Brocklesby, M. D. F. R. S. p. 393. Let. XXIV. An Account of an extraordinary Alteration in the Baths of Toplitz in Bohemia, on the first of November 1755, in a Letter from Father Joseph Steplin to James Short, M. A. F. R. S. Translated from the Latin. p. 395. Extract of Letter XXVI. From Mr. De Hondt, of the Hague, concerning the Agitation of the Waters, Novem. 1. 1755. Translated from the French, and communicated by T. Birch, D.D. Secr. R. S. p. 396. Extract of Let. XXVII. From Mons. Allamond, Professor of Philosophy at Leyden, and F. R. S. dated there Decem. 9, 1755, to Mr. Trembley, F. R. S. Translated from the French. p. 397. LIX. An Account of the Earthquake, Novem. 1, 1, 1755, as felt in the Lead Mines in Derbyshire; in a Letter from the Rev. Mr. Bullock to Lewis Crusius, D. D. F. R. S. Letter I. p. 398. Let. II. An Account of the Earthquake at Lisbon, Nov. 1, 1755, in Two Letters from Mr. Wolfall, Surgeon, to J. Parsons, M. D. F. R. S. p. 402. Letter III. p. 408. Let. IV. CONTENTS. Let. IV. A Copy of Part of Two Letters, written by John Mendes Saccheti, M. D. F. R. S. to Dr. De Castro, F. R. S. dated from the Fields of Lisbon, on the 7th of November, and the 1st of December, 1755. Extract of Let. V. From Mr. J. Latham, dated at Zsusqueira, December 11, 1755, to his Uncle in London. Communicated by Peter Daval, Esq; Secret. R. S. p. 411. Let. VI. Observations, made at Colares, on the Earthquake at Lisbon, of the 1st of November 1755, by Mr. Stoqueler, Consul of Hamburgh. Communicated by Mr. H. Baker, F. R. S. p. 413. Extract of Let. VIII. To Tilman Henkel, Esq; Merchant in London, concerning the Earthquake at Oporto in Portugal, Nov. 1, 1756. Communicated by Mr. John Ellicot, F. R. S. p. 418. Let. IX. Extract of Two Letters to Mr. Plummer, Merchant in London, from Oporto, concerning the Earthquake felt there. Communicated by Mr. John Ellicot, F. R. S. p. 419, 421. Extract of Let. XI. From Oporto, by the Western, Capt. Knowler, dated Nov. 1, 1755. Communicated by Theodore Jacobson, Esq; F. R. S. p. 421. Extract of Let. XII. From Mons. Muysson to Mons. Bazin, concerning the Earthquake at Oporto, Nov. 1, 1755. Communicated by M. Maty, M. D. F. R. S. Translated from the French. p. 422. Extract of Let. XIII. From Madrid, to the Spanish Consul, residing in London. Translated from the Spanish. Communicated by Mr. John Ellicot, F. R. S. p. 423. Let. XIV. An Account of the Earthquake at Cadiz, Nov. 1, 1755, in a Letter from Mr. Ben. Bewick, Merchant CONTENTS. Merchant there, to Mr. Joseph Paice, Merchant in London. p. 424. Let. XV. An Account of the Earthquake at Cadiz, in a Letter to the Spanish Ambassador at the Hague, from Don Ant. d' Ulloa, F. R. S. p. 427. Let. XVI. An Account of the Earthquakes, that happened in Barbary, inclosed in a Letter from General Howke, Governor of Gibraltar, to the Rt. Hon. Henry Fox, Esq; one of his Majesty's principal Secretaries of State. Communicated by the Rt. Hon. Philip Ld. Visc. Royston, F. R. S. p. 428. Let. XVII. An Account of the Earthquake in the Island of Madeira, Nov. 1, 1755, in a Letter from Dr. Tho. Heberden, to his Brother Dr. William Heberden, F. R. S. p. 432. Let. XVIII. Another Account of the same Earthquake at Madeira, in a Letter from Mr. C. Chambers to his Father, in London. p. 435. Let. XIX. An Account of the late Earthquakes of Nov. 1, and 9, 1755, as felt at Neufchâtel in Switzerland. p. 436. Extract of Let. XX. An Account of the Earthquake felt at Geneva, Nov. 9, 1755. p. 438. Let. XXI. An Account of the Earthquake felt at Boston in New England, Nov. 18, 1755. p. 439. Let. XXI. An Account of the Earthquake felt in New York, Nov. 18, 1755. p. 443. Let. XXII. An Account of the Earthquake felt in Pennsylvania, Nov. 18, 1755. p. 444. PHILOSOPHICAL TRANSACTIONS, GIVING SOME ACCOUNT OF THE Present Undertakings, Studies, and Labours, OF THE INGENIOUS, IN MANY Considerable Parts of the WORLD. VOL. XLIX. PART II. For the Year 1756. LONDON. Printed for I. Davis and C. Reymer, Printers to the Royal Society, against Gray's-Inn Gate, in Holbourn. M.DCC.LVII. PHILOSOPHICAL TRANSACTIONS. The CONTENTS. VOL. XLIX. PART II. LX. An Account of Four undescribed Fishes of Aleppo; in a Letter to Mr. Peter Collinson, F. R. S. by Alexander Russell, M. D. Page 445. LXI. An Account of a curious, fleshy, coral-like Substance; in a Letter to Mr. Peter Collinson, F. R. S. from Dr. John Albert Schloesser, M.D. F.R.S. with some Observations on it communicated to Mr. Collinson by Mr. John Ellis, F. R. S. p. 449. LXII. Two singular Cases of disused Knee-joints successfully treated: the first by topical Applications; the second by Operation. By Mr. Joseph Warner, F. R. S. Surgeon of Guy's-Hospital. p. 452. LXIII. Extract of Letter from Mr. William Pye, dated Manilla, Oct. 1st, 1754, to his Brother in London. Communicated to Mr. Benj. Wilson, F. R. S. by the Hon. Mr. Barrington. p. 458. LXIV. An Essay on the Waters of the Holy Well at Malvern, Worcestershire. By J. Wall, M.D. Communicated by the Rev. Charles Lyttleton, L.L.D. Dean of Exeter, F. R. S. p. 459. CONTENTS. LXIV. An Account of the Case of a Man, who died of the Effects of the Fire at Eddy-stone Lighthouse. By Mr. Edward Spry, Surgeon at Plymouth. p. 477. A Letter to the Right Hon. George Earl of Macclesfield, President of the Royal Society, concerning the same. p. 480. A Letter of John Huxham, M.D. F.R.S. to Mr. William Watson, F.R.S. concerning the Case of the Man, who swallowed melted Lead. p. 483. LXV. A farther Account of the Success of some Experiments of injecting Claret, &c. into the Abdomen, after Cupping. By Mr. Christopher Warrick. p. 485. LXVI. An Account of the late Discoveries of Antiquities at Herculaneum, &c. in Two Letters from Camillo Paderni, Keeper of the Museum Herculanei, to Thomas Hollis, Esq; Translated from the Italian by Robert Watson, M.D. F.R.S. p. 490. LXVII. An Account of the Earthquake felt at Glasgow and Dumbarton; also of a Shower of Dust falling on a Ship between Shetland and Iceland; in a Letter from Dr. Robert Whytt, Professor of Medicine in the University of Edinburgh, to John Pringle, M.D. F.R.S. p. 509. LXVIII. Extract of a Letter from Mons. Bonnet, F.R.S. to Mr. Trembley, F.R.S. dated at Geneva, 30 January 1756, concerning the Earthquake on the 14th of November, 1755, in Valais in Switzerland. Translated from the French. p. 511. LXIX. Extract of a Letter from Mons. Allamand, Professor CONTENTS. Professor of Natural Philosophy at Leyden, and F. R. S. to Mr. Trembley, F. R. S. Translated from the French. p. 512. LXX. An Account of some Fungitæ and other curious coralloid fossil Bodies; by Thomas Pennant, Esq; Communicated by Mr. Henry Baker, F. R. S. p. 513. LXXI. An Account of Inoculation by Sir Hans Sloane, Bart. given to Mr. Ranby, to be published, Anno 1736. Communicated by the Rev. Thomas Birch, D. D. Secret. R. S. p. 516. LXXII. Extract of a Letter from Dr. John Stevenson, Physician at Edinburgh, to John Pringle, M. D. F. R. S. dated Edinburgh, 17 Feb. 1756, with an Account of an extraordinary Agitation of the Water in a small Lake at Closeburn, in the Shire of Dumfries; by Sir Thomas Kilpatrick, of Closeburn, Bart. p. 521. LXXIII. Accounts of the Irregularities of the Tides at Chatham, Sheerness, Woolwich, and Deptford, in Feb. 1756. Communicated by the Rt. Hon. George Lord Anson, F. R. S. p. 523. LXXIV. Accounts of the Irregularities of the Tides in the River Thames, on the 12th and 13th of February, 1756. Communicated by Robert Dingley, Esq; F. R. S. p. 530. LXXV. Thoughts on the Reverend Dr. Hales's new Method of Distillation by the united Force of Air and Fire. By William Brownrigg, M. D. F. R. S. p. 534. LXXVI. Extract of a Letter to the Rev. Dr. Hales, F. R. S. from Governor Belcher's Lady; dated Elizabeth-town, New-Jersey, Oct. 22, 1755; CONTENTS. 1755; concerning an extraordinary Motion in the Waters in the Lake Ontario in North America. p. 544. LXXVII. An Extract of a Letter from Mons. Grovestins, Master of the Horse to his R. H the Prince of Orange, Lieutenant-General, Commandant of the Forces, concerning an Earthquake felt by himself at the Hague, on Wednesday the 18th of Feb. 1756. Translated from the French, and communicated by the Rev. William Parker, D.D. F.R.S. p. 544. LXXVIII. An Account of an Earthquake felt in Holland, Feb. 18, 1756; in a Letter from Mons. Allamand, Professor of Natural Philosophy at Leyden, and F.R.S. to Mr. Trembley, F.R.S. Dated at Leyden, Feb. 27, 1756. Translated from the French. p. 545. LXXIX. An Account of the Earthquakes felt at Brussels; in a Letter from John Pringle, M.D. F.R.S. to Thomas Birch, D.D. F.R.S. p. 546. LXXX. An Account of the Sinking of a River near Pentypool in Monmouthshire; in a Letter from Mr. Edward Matthews, to the Commissioners of the Excise. p. 547. LXXXI. An Account of the Agitation of the Waters, on the 1st of November 1755, in Scotland and at Hamburgh. Communicated by John Pringle, M.D. F.R.S. in a Letter to Thomas Birch, D.D. Secret. R.S. p. 550. LXXXII. Microscopical Observations: In a Letter from Edward Wright, Esq; to Mr. Peter Collinson, F.R.S. dated at Paris, December 26, 1755. p. 553. LXXXIII CONTENTS. LXXXIII. An Account of a Cure of a paralytic Arm by Electricity: In a Letter from Cheney Hart, M. D. to Mr. William Watson, F. R. S. p. 558. LXXXIV. Observations made upon the Brimstone-Hill (in French La Souffriere) in the Island of Guadelupa; by John Andrew Peyssonnel, M. D. Member of the Royal Academies of Sciences of Paris and Montpelier, and of Marseilles and Rouen; the King of France's Physician and Botanist heretofore on the Coast of Barbary, and now in the Island of Guadelupa, F. R. S. Translated from the French by M. Maty, M. D. and F. R. S. p. 564. LXXXVI. Account of the Earthquake, felt February 18, along the Coast of England, between Margate and Dover, in a Letter from Mr. Samuel Warren, Supervisor of Excise, to John Windham Bowyer, Esq.; one of his Majesty's Commissioners of Excise. Communicated by John Pringle, M. D. F. R. S. p. 579. LXXXVII. Remarks on the Stones, in the Country of Nassau, and the Territories of Treves and Colen, resembling those of the Giants Causey in Ireland. In a Letter to Thomas Birch, D. D. Secret. R. S. from Mr. Abraham Trembley, F. R. S. Translated from the French. p. 581. LXXXVIII. An Account of a Work published in Italian by Vitaliano Donati, M. D. containing, An Essay towards a Natural History of the Adriatic Sea: By Mr. Abraham Trembley, F. R. S. Translated from the French, by Thomas Birch, D. D. Secr. R. S. p. 585. LXXXIX. CONTENTS. LXXXIX. A Dissertation upon a Parthian Coin, with Characters on the Reverse resembling those of the Palmyrenes. In a Letter from the Rev. John Swinton, M. A. of Christ-Church, Oxon. F. R. S. to the Rev. Thomas Birch, D. D. Secret. R. S. p. 593. XC. A Catalogue of the Fifty Plants from Chelsea Garden, presented to the Royal Society, by the worshipful Company of Apothecaries, for the Year 1755, pursuant to the Direction of Sir Hans Sloane, Baronet, Med. Reg. & Soc. Reg. nuper Praeses, by John Wilmer, M. D. clariss. Societatis Pharmaceut. Lond. Socius, Hort. Chelf. Praefectus & Praelector Botan. p. 607. XCI. Extract of a Letter from Dr. Vitaliano Donati, Professor of Botany at Turin, to Mr. Abraham Trembley, F. R. S. concerning the Earthquakes felt at Turin, December 9, 1755, and March 8, 1756. Translated from the Italian. p. 612. XCII. An Account of a continued Succession of Earthquake at Brigue in Valais. Written by the Rector of the College of Jesuits at Brigue, and addressed to Mons. Jalabert, Professor of Philosophy and Mathematics at Geneva, and F. R. S. and communicated by Mr. Abraham Trembley, F. R. S. Translated from the Latin. p. 616. XCIII. Extract of a Letter of Mons. la Condamine, F. R. S. to Dr. Maty, F. R. S. translated from the French. p. 622. XCIV. Observations upon the Currents of the Sea, at the Antilles of America: By Dr. Peyssonnel, F. R. S. p. 624. XCV. CONTENTS. XCV. An Account of Lacerta (Crocodilus) ventre marsupio donato, faucibus Merganseris rostrum æmulantibus. By Mr. George Edwards, Librarian to the College of Physicians. p. 639. XCVI. An Account of an unusual Agitation of the Sea, at Ildfarcombe, in Devonshire, Feb. 27, 1756. By the Rev. Mr. Prince, of Barnstable. Communicated by the Rev. Jeremiah Milles, D. D. F. R. S. p. 642. XCVII. Extract of a Letter from the Rev. Mr. Holdsworth, at Dartmouth, relating to the Agitation of the Waters observed there on the 1st of Movember, 1755. Communicated by the Rev. Jeremiah Milles, D. D. F. R. S. p. 643. XCVIII. An Account of a Method of observing the wonderful Configuration of the smallest shining Particles of Snow, with several Figures of them: By John Nettis, Doctor of Physic, and Oculist to the Republic of Middleburg, &c. Translated from the Latin. p. 644. XCIX. An Account of the Copper-springs lately discovered in Pennsylvania: By John Rutty, M.D. of Dublin. Communicated by Mr. Peter Collinson, F. R. S. p. 648. C. Extract of a Letter from the Abbé Mazeas, F. R. S. concerning an ancient Method of Painting, revived by Count Caylus. Translated from the French by James Parsons, M. D. F. R. S. p. 652. CI. Observations on the Abbé Mazeas's Letter on the Count de Caylus's Method of imitating the ancient Painting in burnt Wax: By James Parsons, M. D. F. R. S. p. 655. CII. An Account of the late Earthquakes felt at Maestricht; in a Letter from Mons. Vernede, Pastor of the Wallon Church there, to Mons. Allemand, Professor of Philosophy at Leyden, F. R. S. Communicated by Mr. Abraham Trembley, F. R. S. Translated from the French. p. 663. CIII. An Account of the Agitation of the Sea at Antigua, Nov. 1, 1755. By Capt. Affleck of the Advice Man of War. Communicated by Charles Gray, Esq; F. R. S. in a Letter to Mr. William Watson, F. R. S. p. 668. CIV. An Account of a remarkable Fossil, in a Letter from Edward Wright, M. D. to Mr. Peter Collinson, F. R. S. p. 670. CV. An Account of the Orthoceratites: In a Letter from Edward Wright, M. D. to Mr. Peter Collinson, F. R. S. p. 672. CVI. A Retraction, by Mr. Benjamin Wilson, F. R. S. of his former Opinion, concerning the Explication of the Leyden Experiment. p. 682. CVII. An Account of the extraordinary Agitation of the Waters in several Ponds in Hertfordshire: In a Letter from the Rev. Thomas Rutherforth, D. D. F. R. S. to the Rev. Samuel Squire, D.D. F. R. S. p. 684. CVIII. Some Considerations on a draught of two large pieces of Lead, with Roman Inscriptions upon them, found several years since in Yorkshire. By John Ward, LL.D. Rhet. Prof. Gresh. and V.P. R. S. p. 686. CIX. Two Essays addressed to the Rev. James Bradley, CONTENTS Bradley, D.D. and Astronom. Reg. by Mr. Charles Walmsley, F.R.S. p. 700. CX. A Journal of the Weather in Dublin for the Year 1753; by Mr. James Simon, F.R.S. and S.A. p. 759. CXI. An Account of what happened at Bergemolitto, by the tumbling down of vast Heaps of Snow from the Mountains there, on March 19, 1755: As taken by the Intendant of the Town and Province of Cunco. Received from Dr. Joseph Bruni, Professor of Philosophy at Turin, and F.R.S. Communicated by Mr. Henry Baker, F.R.S. Translated from the Italian. p. 796. CXII. An Account of some of the more rare English Plants observed in Leicestershire. p. 803. *CXII. A Letter from Mr. John Ellis, F.R.S. to Philip Cartcret Webb, Esq; F.R.S. attempting to ascertain the Tree that yields the common Varnish used in China and Japan; to promote its Propagation in our American Colonies; and to set right some Mistakes Botanists appear to have entertained concerning it. p. 806. CXIII. A Letter to George Lewis Scott, Esquire, concerning the present Increase of the People in Britain and Ireland: From William Brakenridge, D.D. Rector of St. Michael Bassishaw, London, and F.R.S. p. 877. CXIV. A Letter to the Reverend William Brakenridge, D.D. Rector of St. Michael Bassishaw, and F.R.S. with a Table of the Value of Annuities on Lives, by Mr. James Dodson, Master of the Royal Mathematical School in Christ's Hospital, and F.R.S. p. 891. CXV. An CONTENTS. CXV. An Account of an Earthquake felt at Colen, Leige, Maestricht, &c. on the 19th of November, 1756: In a Letter from Mr. Abraham Trembley, F.R.S. to Thomas Birch, D.D. Secretary to the Royal Society. Translated from the French. p. 893. CXVI. An Account of a Treatise, in Latin, presented and dedicated to the Royal Society, intitled, "Gottlob Caroli Springsfeld, M.D. &c. &c. commentatio de praerogativa Thermarum Carolinarum in dissolvendo calculo vesicæ pra aqua calcis vivæ," by Mr. William Watson, Member of the Royal Academy of Physicians at Madrid; and F.R.S. p. 895.