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. L. PART I. For the Year 1757. LONDON. Printed for L. DAVIS and C. REYMERS, Printers to the ROYAL SOCIETY, against Gray's-Inn Gate, in Holbourn. M.DCC.LVIII. THE CONTENTS TO PART I. VOLUME L. I. An Account of the Earthquake felt in New England, and the neighbouring Parts of America, on the 18th of November 1755. In a Letter to Tho. Birch, D.D. Secret. R.S. by Mr. Professor Winthrop, of Cambridge in New England. Page 1. II. The strange Effects of some effervescent Mixtures; in a Letter from Dr. James Mounsey, Physician of the Russian Army, and F.R.S. to Mr. Henry Baker, F.R.S. Communicated by Mr. Baker. p. 19. III. Extract of a Letter of J. Wall, M.D. to the Rev. Dr. Lyttelton, Dean of Exeter, and F.R.S. concerning the good Effects of Malverne Waters in Worcestershire. p. 23. IV. An Account of the Carlsbad Mineral Waters in Bohemia: In a Letter to the Right Honourable the Earl of Macclesfield, President of the R.S. by the Rev. Jeremiah Milles, D.D. F.R.S. p. 25. V. An Essay towards ascertaining the specific Gravity of living Men. By Mr. John Robertson, F.R.S. p. 30. CONTENTS. VI. An Instance of the Gut Ileum, cut thro' by a Knife, successfully treated by Mr. Peter Travers, Surgeon, at Lisbon. Communicated by John Huxham, M.D. F.R.S. p. 35. VII. An Account of a Visitation of the leprous Persons in the Isle of Guadaloupe: In a Letter to Mons. Damonville, Counsellor and Assistant-Judge at Martinico, and in the Office of King's Physician at Guadaloupe. By John Andrew Peytonel, M.D. F.R.S. Translated from the French. p. 38. VIII. An Account of the late Discoveries of Antiquities at Herculaneum; in an Extract of a Letter from Camillo Paderni, Keeper of the Herculanean Museum, and F.R.S. to Thomas Hollis, Esq; dated Naples, Dec. 16, 1756. p. 49. IX. An Account of some Trees discovered underground on the Shore at Mount's-Bay in Cornwall: In a Letter from the Rev. Mr. William Borlase, F.R.S. to the Rev. Dr. Lyttelton, Dean of Exeter. p. 51. X. Experiments on applying the Rev. Dr. Hales's Method of distilling Salt-water to the Steam-Engine. By Keane Fitzgerald, Esq; F.R.S. p. 53. XI. Extract of a Letter of Mr. Abraham Trembley, F.R.S. to Tho. Birch, D.D. Secret. R.S. Translated from the French. p. 58. XII. A brief Botanical and Medical History of the Solanum Lethale, Bella-donna, or Deadly Night shade, by Mr. Richard Pulteney. Communicated by Mr. William Watson, F.R.S. p. 62. XIII. An Account of some of the Antiquities discovered at Herculaneum, &c. In a Letter to Thomas Birch, D.D. Secret. R.S. By John Nixon, A.M. F.R.S. p. 88. XIV. CONTENTS. XIV. An Account of the Effects of a Storm of Thunder and Lightning, in the Parishes of Looe and Lanreath, in the County of Cornwall, on the 27th Day of June 1756. Communicated to the Rev. Jeremiah Milles, D.D. F.R.S. in two Letters, one from the Rev. Mr. Dyer, Minister of Looe, and the other from the Rev. Mr. Milles, Vicar of Duloe, in Cornwall. p. 104. XV. An Account of the Peat-pit near Newbury in Berkshire; in an Extract of a Letter from John Collet, M.D. to the Right Reverend Richard Lord Bishop of Ossory, F.R.S. p. 109. XVI. An Account of the Alterations making in the Pantheon at Rome: In an Extract of a Letter from Rome to Thomas Hollis, Esq; Communicated by John Ward, LL.D. R.S. Vice-Praef. p. 115. XVII. An Account of a new medicinal Well, lately discovered near Moffat, in Annandale, in the County of Dumfries. By Mr. John Walker, of Borgue-house near Kirkudbright in Scotland. p. 115. XVIII. An Account of the State of the Thermometer at the Hague on the 9th of January 1757. Extracted from a Letter of Mr. Abraham Trembley, F.R.S. to Tho. Birch, D.D. Secret. R.S. p. 148. XIX. Experimental Examination of Platina. By William Lewis, M.B. F.R.S. Paper V. ibid. XX. Experimental Examination of Platina. By William Lewis, M.B. F.R.S. Paper VI. p. 156. XXI. An Account of the Temple of Serapis at Pozzuoli in the Kingdom of Naples: In a Letter to John Ward, LL.D. and R.S. Vice-Praef. by the Rev. John Nixon, M.A. F.R.S. p. 166. XXII. Some Remarks on a Parthian Coin with a Greek CONTENTS. Greek and Parthian Legend, never before published. In a Letter from the Rev. John Swinton, M.A. of Christ-Church, Oxon, F.R.S. to the Rev. Tho. Birch, D.D. Secret. R.S. p. 175. XXIII. An Account of a Red Coral from the East-Indies, of a very singular Kind: In a Letter from Mr. John Ellis, F.R.S. to Mr. Peter Collinson, F.R.S. p. 189. XXIV. An Account of the Effects of a Storm at Wigton in Cumberland. Communicated by Mr. Philip Miller, F.R.S. p. 194. XXV. An Account of the Effects of Lightning upon the Steeple and Church of Lestwithiel, Cornwall; in a Letter to the Right Honourable the Earl of Macclesfield, President of the R.S. By Mr. John Smeaton, F.R.S. p. 198. XXVI. An Account of the Case of the late Right Honourable Horace Lord Walpole; being a Sequel to his own Account published in the Philosophical Transactions, Vol. xlvii. p. 43 and 472. Postscript to Dr. Whytt's Observations on Lord Walpole's Case. p. 205. XXVII. An Account of the Virtues of Soap in dissolving the Stone, in the Case of the Rev. Mr. Matthew Simpson. Communicated by John Pringle, M.D. F.R.S. p. 221. XXVIII. An Account of the Impressions of Plants on the Slates of Coals: In a Letter to the Right Honourable George Earl of Macclesfield, President of the R.S. from Mr. Emanuel Mendes da Costa, F.R.S. p. 228. XXIX. A Catalogue of the Fifty Plants from Chelsea Garden, presented to the Royal Society by the worshipful Company of Apothecaries, for the Year 1756, CONTENTS. 1756, pursuant to the Direction of Sir Hans Sloane, Baronet, Med. Reg. & Soc. nuper Praes, by John Wilmer, M.D. clariss. Societatis Pharmaceut. Lond. Socius, Hort. Chelf. Praefect. & Praelector Botan. p. 236. XXX. Remarks on the Opinion of Henry Eeles, Esq; concerning the Ascent of Vapour, published in the Philosoph. Transact. Vol. xlix. Part i. p. 124. By Erasmus Darwin, M.D. Communicated by Mr. William Watson, F.R.S. p. 240. XXXI. An Account of a new-discovered Species of the Snipe or Tringa: In a Letter to the Rev. Tho. Birch, D.D. Secret. R.S. from Mr. Geo. Edwards, Librarian of the College of Physicians. p. 255. XXXII. Observationes de Corallinis, iisque insidentibus Polypis, alisque Animalculis Marinis: Quas Regiae Societati Londinensi offert Job Baster, Med. Doct. Acad. Caesar. Reg. Societ. Lond. & Scient. Holland. Socius. p. 258. XXXIII. Remarks on Dr. Job Baster's Observationes de Corallinis, &c. In a Letter to the Right Hon. George Earl of Macclesfield, President of the R.S. from Mr. John Ellis, F.R.S. p. 280. XXXIV. An Account of an extraordinary Operation performed in the Dock-Yard at Portsmouth: Drawn up by Mr. John Robertson, F.R.S. p. 288. XXXV. Observations on an Evening, or rather Nocturnal, Solar Iris. By Mr. George Edwards, Librarian of the College of Physicians. p. 293. XXXVI. The Effects of the Opuntia, or Prickly Pear, and of the Indigo Plant, in colouring the juices of living Animals. Communicated by H. Baker, F.R.S. p. 296. XXXVII. XXXVII. An Account of an extraordinary Shower of black Dust, that fell in the Island of Zetland 20th October 1755. In a Letter from Sir Andrew Mitchell, of Westshore, Bart. to John Pringle, M.D. F.R.S. p. 297. XXXVIII. A Description of some Thermometers for particular Uses. By the Right Honourable the Lord Charles Cavendish, V.P. R.S. p. 300. XXXIX. Observationes Anatomico-Medicae de Monstro bicorporeo Virgineo A. 1701. die 26 Oct. in Pannonia, infra Comaromium, in Possessione Szony, quondam Quiritum Bregetione, in lucem edito, atque A. 1723. die 23 Febr. Posonii in Caenobio Monialium S. Ursulae morte functo ibidemque sepulto. Authore Justo Johanne Torkos, M.D. Soc. Regalis Socio. p. 311. XL. Observations on the Origin and Use of the Lymphatic Vessels of Animals: Being an Extract from the Gulstonian Lectures, read in the Theatre of the College of Physicians of London, in June 1755. By Mark Akenside, M.D. Fellow of the College of Physicians, and of the Royal Society. p. 322. XLI. A Letter to the Right Honourable the Earl of Macclesfield, President, the Council, and Fellows, of the Royal Society, concerning the Variation of the Magnetic Needle; with a Sett of Tables annexed, which exhibit the Result of upwards of Fifty Thousand Observations, in Six periodic Reviews, from the Year 1700 to the Year 1756, both inclusive; and are adapted to every Five Degrees of Latitude and Longitude in the more frequented Oceans. By William Mountaine and James Dodson, Fellows of the Royal Society. p. 329. XLII. XLII. An Account of some extraordinary Tumors upon the Head of a labouring Man, now in St. Bartholomew's Hospital. By James Parsons, M.D. F.R.S. p. 350. XLIII. An Extract of the Register of the Parish of Great Shefford, near Lamborne, in Berkshire, for Ten Years: With Observations on the same: In a Letter to Tho. Birch, D.D. Secret. R.S. from the Rev. Mr. Richard Foster, Rector of Great Shefford. p. 356. XLIV. A remarkable Case of an Aneurism, or Disease of the principal Artery of the Thigh, occasioned by a Fall. To which is prefixed a short Account of the Uncertainty of the distinguishing Symptoms of this Disease. By Jos. Warner, F.R.S. and Surgeon to Guy's Hospital. p. 363. XLV. Farther Experiments for increasing the Quantity of Steam in a Fire-Engine. By Keane Fitz-Gerald, Esq; F.R.S. p. 370. XLVI. Observatio Eclipsis Lunæ Die 27 Martii, Ann. 1755. habita Ulissipone in Domo Patrum Congregationis Oratorii à Joanne Chevalier ejusdem Congregationis Presbytero, Regiæ Londinensis Societatis Socio, Regiæque Parisiensis Scientiarum Academiæ correspondente. p. 374. XLVII. Eclipsis Lunæ Die 4 Februarii, Ann. 1757. habita Ulissipone à Joanne Chevalier Presbytero Congregationis Oratorii, Regiæ Londinensis Societatis Socio, Regiæque Scientiarum Parisiensis Academiæ correspondente, et a Theodoro de Almeida ejusdem Congregationis Presbytero, ac Physicæ publico Professore. p. 376. Observationes Eclipsium Satellitum Jovis Ulissipone habita a Joanne Chevalier, &c. p. 377. Vol. 50. a XLVIII. XLVIII. Observationes Eclipshum Satellitum Jovis Ulissipone habitæ à Joanne Chevalier, Presbytero Congregationis Oratorii, Regiæque Londinensis Societatis Socio, Anno 1757. p. 378. XLIX. A remarkable Case of the Efficacy of the Bark in a Mortification: In a Letter to William Watson, M.D. F.R.S. from Mr. Richard Grindall, Surgeon to the London Hospital. p. 379. L. A Letter to the Rev. Tho. Birch, D.D. Secret. R.S. from John Pringle, M.D. F.R.S. inclosing Two Papers communicated to him by Robert Whytt, M.D. F.R.S. p. 383. 1. Some Observations on the lithontriptic Virtue of the Carlsbad Waters, Lime-water, and Soap: In Letter to Dr. John Pringle, F.R.S. from Dr. Robert Whytt, F.R.S. and Professor of Medicine in the University of Edinburgh. p. 386. 2. An Instance of the Electrical Virtue in the Cure of a Palsy. By Mr. Patrick Brydone. p. 392. LI. An Account of some fossil Fruits, and other Bodies, found in the Island of Shepey. By James Parsons, M.D. F.R.S. p. 396. LII. Observations on the Comet, that appeared in the Months of September and October 1757, made at the Royal Observatory by Ja. Bradley, D.D. Astronomer Royal, F.R.S. and Member of the Royal Academy of Sciences at Paris. p. 408. LIII. The Resolution of a General Proposition for determining the horary Alteration of the Position of the Terrestrial Equator, from the Attraction of Sun and Moon: With some Remarks on the Solutions given by other Authors to that difficult and important Problem. By Mr. Tho. Simpson, F.R.S. p. 416. LIV. CONTENTS. LIV. Remarks upon the Heat of the Air in July 1757, in an Extract of a Letter from John Huxham, M.D. F.R.S. to William Watson, M.D. F.R.S. dated at Plymouth 19th of the same Month. With additional Remarks by Dr. Watson. p. 428. LV. Remarks upon the Letter of Mr. John Ellis, F.R.S. to Philip Carteret Webb, Esq; F.R.S. printed in the Philosophical Transactions, Vol. xlix. Part ii. p. 806. By Mr. Philip Miller, F.R.S. p. 430. LVI. An Answer to the preceding Remarks. By Mr. John Ellis, F.R.S. p. 441. LVII. A Letter to the Rev. Tho. Birch, D.D. Secr. R.S. concerning the Number of the People of England; by the Rev. Mr. Richard Forster, Rector of Great Shefford in Berkshire. p. 457. LVIII. A Letter to the Right Honourable the Earl of Macclesfield, President of the Royal Society, from the Rev. William Brakenridge, D.D. F.R.S. containing an Answer to the Account of the Numbers and Increase of the People of England, by the Rev. Mr. Forster. p. 465. ERRA- PHILOSOPHICAL TRANSACTIONS, GIVING SOME ACCOUNT OF THE Present Undertakings, Studies, and Labours, OF THE INGENIOUS, IN MANY Considerable Parts of the WORLD. VOL. L. PART II. For the Year 1758. LONDON: Printed for L. Davis and C. Reymer, Printers to the Royal Society, against Gray's-Inn Gate, in Holbourn. M.DCC.LIX. THE CONTENTS TO PART II. VOLUME L. LIX. An Account of the Effects of Electricity in paralytic Cases. In a Letter to John Pringle, M.D. F.R.S. from Benjamin Franklin, Esq; F.R.S. p. 481. LX. Observations on the late Comet in September and October 1757; made at the Hague by Mr. D. Klinkenberg: In a Letter to the Rev. James Bradley, D.D. Astronomer Royal, and F.R.S. and Member of the Royal Academy of Sciences at Paris. Translated from the Low Dutch. p. 483. LXI. Remarks on the different Temperature of the Air at Edystone, from that observed at Plymouth, between the 7th and 14th of July 1757. By Mr. John Smeaton, F.R.S. p. 488. LXII. An Account of the Earthquake felt in the Island of Sumatra, in the East Indies, in November and December 1756. In a Letter from Mr. Perry to the Rev. Dr. Stukeley, dated at Fort Marlborough, in the Island of Sumatra, Feb. 20. 1757. Communicated by the Rev. Wm. Stukeley, M.D. F.R.S. p. 491. * * LXIII. CONTENTS. LXIII. Concerning the Fall of Water under Bridges. By Mr. J. Robertson, F. R. S. p. 492. LXIV. An Account of the Earthquake in the West Parts of Cornwall, July 15th 1757. By the Rev. William Borlase, M. A. F. R. S., Communicated by the Rev. Charles Lyttelton, L.L.D. Dean of Exeter, F. R. S. p. 499. LXV. Some Observations upon the Sleep of Plants; and an Account of that Faculty, which Linnæus calls Vigiliae Florum; with an Enumeration of several Plants, which are subject to that Law. Communicated to Wm. Watson, M. D. F. R. S. by Mr. Richard Pulteney of Leicester. p. 506. LXVI. An Account of the Case of a Boy troubled with convulsive Fits cured by the Discharge of Worms. By the Rev. Richard Oram, M. A. Chaplain to the Lord Bishop of Ely. p. 518. An Account of the same Subject, in a Letter from Mr. John Gaze, of Walke, in the County of Norfolk, to Mr. Wm. Arderon, F. R. S. Communicated by Mr. Henry Baker, F.R.S. p. 521. LXVII. An Account of the extraordinary Heat of the Weather in July 1757, and of the Effects of it. In a Letter from John Huxham, M. D. F. R. S. to Wm. Watson, M. D. F. R. S. p. 523. LXVIII. An Account of the fossile Thigh-bone of a large Animal, dug up at Stonesfield, near Woodstock, in Oxfordshire. In a Letter to Mr. Peter Collinson, F. R. S. from Mr. Joshua Platt. p. 524. LXIX. A Discourse of the Usefulness of Inaculation of the horned Cattle to prevent the contagious Distemper among them. In a Letter to the Right Hon. CONTENTS. Hon. George Earl of Macclesfield, P. R. S. from Daniel Peter Layard, M. D. F. R. S. p. 528. LXX. Trigonometry abridged. By the Rev. Patrick Murdoch, A. M. F. R. S. p. 538. LXXI. An Account of Two extraordinary Cases of Gall-Stones. By James Johnstone, M. D. of Kidderminster. Communicated by the Rev. Charles Lyttelton, LL. D. Dean of Exeter. p. 543. LXXII. A remarkable Case of Cohesions of all the Intestines, &c. in a Man of about Thirty-four Years of Age, who died some time last Summer, and afterwards fell under the Inspection of Mr. Nicholas Jenty. p. 550. LXXIII. Of the best Form of Geographical Maps. By the Rev. Patrick Murdoch, M. A. F. R. S. p. 553. LXXIV. A short Dissertation on Maps and Charts: In a Letter to the Rev. Thomas Birch, D. D. and Sec. R. S. By Mr. William Mountaine, F. R. S. p. 563. LXXV. Cases of the remarkable Effects of Blistering in lessening the Quickness of the Pulse in Coughs, attended with Infarction of the Lungs and Fever: By Robert Whytt, M. D. F. R. S. Fellow of the Royal College of Physicians, and Professor of Medicine in the University of Edinburgh. p. 569. LXXVI. A remarkable Instance of Four rough Stones, that were discovered in an human urinary Bladder, contrary to the received Opinion; and successfully extracted by the lateral Method of Cutting for the Stone. By Mr. Joseph Warner, F. R. S. and Surgeon to Guy's Hospital. p. 579. * * * LXXVII. CONTENTS. LXXVII. Observations on the Limax non cochleata Purpuram ferens, The naked Snail producing Purple. By John Andrew Peysonel, M.D. F.R.S. Translated from the French. P. 585. LXXVIII. New Observations upon the Worms that form Sponges. By John Andrew Peysonel, M.D. F.R.S. Translated from the French. P. 590. LXXIX. Account of an Experiment, by which it appears, that Salt of Steel does not enter the Lacteal Vessels; with Remarks. In a Letter to the Rev. Thomas Birch, D.D. Secret. R.S. By Edward Wright, M.D. P. 594. LXXX. A Dissertation on the Antiquity of Glass in Windows. In a Letter to the Rev. Tho. Birch, D.D. Secret. R.S. By the Rev. John Nixon, M.A. F.R.S. P. 601. LXXXI. An Account of an extraordinary Case of the Efficacy of the Bark in the Delirium of a Fever. By Nic. Munckley, M.D. Physician to Guy's-Hospital, and F.R.S. P. 609. LXXXII. An Account of an Earthquake felt at Lingfield in Surrey, and Edenbridge in Kent, on the 24th of January 1758. By James Burrow, Esq; R.S.V.P. P. 614. LXXXIII. An Account of the Case of the First Joint of a Thumb torn off, with the Flexor Tendon in its whole Extent torn out. By Robert Home, late Surgeon to the Thirtieth Regiment of Foot, and Surgeon at Kingston upon Hull. In a Letter to John Pringle, M.D. F.R.S. P. 617. LXXXIV. An Account of the late Discoveries of Antiquities at Herculaneum, and of an Earthquake there; in a Letter from Camillo Paderni, Keeper CONTENTS. Keeper of the Museum at Herculaneum, and F. R. S. to Tho. Hollis, Esq; F. R. S. dated Portici, Feb. 1. 1758. p. 619. LXXXV. A further Attempt to facilitate the Resolution of Isoperimetrical Problems. By Mr. Thomas Simpson, F. R. S. p. 623. LXXXVI. Observations on the Alga Marina latifolia; The Sea Alga with broad Leaves. By John Andrew Peyssonel, M. D. F. R. S. Translated from the French. p. 631. LXXXVII. An Account of the distilling Water fresh from Sea-Water by Wood-Ashes. By Capt. William Chapman: In a Letter to John Fothergill, M. D. p. 635. LXXXVIII. Observatio Eclipsei Lunaris facta Matriti a P. Joanne Wendlingen, Societatis Jesu, in Regali Observatorio Collegii Imperialis ejusdem Societatis, Die 30 Julii 1757. p. 640. Observatio Eclipsei Lunaris, facta ab eodem, eodem modo, eodem loco, iisdemque instrumentis, Die 24 Januar. Anni 1758. p. 642. LXXXIX. Observations upon a slight Earthquake, tho' very particular, which may lead to the Knowledge of the Cause of great and violent ones, that ravage whole Countries, and overturn Cities. By John Andrew Peyssonel, M. D. F. R. S. Translated from the French. p. 645. XC. A Catalogue of the Fifty Plants from Chelsea Garden, presented to the Royal Society by the Worshipful Company of Apothecaries, for the Year 1757, pursuant to the Direction of Sir Hans Sloane, Baronet, Med. Reg. & Soc. Reg. nuper Praeses, by John Wilmer, M.D. clariss. Societatis Pharmaceut. CONTENTS. Pharmaceut. Lond. Socius, Hort. Chelsean. Praefectus & Praelector Botanic. p. 648. XCII. An Historical Memoir concerning a Genus of Plants called Lichen by Michelli, Haller, and Linnæus; and comprehended by Dillenius under the Terms Usnea, Coralloides, and Lichenoides; Tending principally to illustrate their several Uses. Communicated by William Watson, M.D. F.R.S. p. 652. XCIII. De rariori quadam Orthoceratiis Specie, in Suecia reperta, tractatus: in literis a Nicholao de Himsel, M.D. Riga Livono, ad Gul. Watson, M.D. R.S.S. p. 688. XCIV. A further Account of the Effects of Electricity in the Cure of some Diseases: In a Letter from Mr. Patrick Brydone to Dr. Robert Whytt, Professor of Medicine in the University of Edinburgh, and F.R.S. p. 692. XCV. An Account of the Black Assize at Oxford, from the Register of Merton College in that University. Communicated by John Ward, LL.D. With some additional Remarks. p. 695. XCVI. A Description of the Plan of Peking, the Capital of China; sent to the Royal Society by Father Gaubil, è Societate Jesu. Translated from the French. p. 699. XCVII. An Attempt to improve the Manner of working the Ventilators by the Help of the Fire-Engine. In a Letter to Tho. Birch, D.D. Secret. R.S. from Keane Fitz-Gerald, Esq.; F.R.S. p. 704. XCVIII. CONTENTS. XCVIII. An Account of some Experiments concerning the different Refrangibility of Light. By Mr. John Dollond. With a Letter from James Short, M. A. F. R. S., Acad. Reg. Suec. Soc. p. 733. XCIX. An Account of some extraordinary Effects arising from Convulsions; being Part of a Letter to John Huxham, M.D. and F.R.S. from William Watson, M. D. R. S. S. p. 743. C. An Account of an extraordinary Storm of Hail in Virginia. By Francis Fauquier, Esq.; Lieutenant Governor of Virginia, and F. R. S. Communicated by William Fauquier, Esq.; F. R. S. p. 746. CI. An Account of an extraordinary Case of a diseased Eye: In a Letter to Matthew Maty, M. D F. R. S. By Daniel Peter Layard, M. D. F. R. S. p. 747. CII. An Account of the Heat of the Weather in Georgia: In a Letter from his Excellency Henry Ellis, Esq.; Governor of Georgia, and F. R. S. to John Ellis, Esq.; F. R. S. p. 754. CIII. The Invention of a General Method for determining the Sum of every 2d, 3d, 4th, or 5th, &c. Term of a Series, taken in order, the Sum of the whole Series being known. By Thomas Simpson, F. R. S. p. 757. CIV. Observatio Eclipsei Lune Die 30 Julii 1757. habita Olissipone à Joanne Chevalier, Congregatio- nis Oratorii Presbytero, è Regiè Londinensi Societate. Communicated by Jacob de Castro Sar- miento, M. D. F. R. S. p. 769. CV. Singular Observations upon the Manchenille Apple. By John Andrew Peyssonel, M. D. F. R. S. Translated from the French. p. 772. CVI. CONTENTS. CVI. Abstract of a Letter from Mr. William Arderon, F. R. S. to Mr. Henry Baker, F. R. S. on the giving Magnetism and Polarity to Brats. Communicated by Mr. Baker. p. 774. CVII. An Account of the Sea Polypus, by Mr. Henry Baker, F. R. S. p. 777. CVIII. A Description of the fossil Skeleton of an Animal found in the Alum Rock near Whitby. By Mr. Wooller. Communicated by Charles Morton, M. D. F. R. S. p. 786. CIX. A Dissertation on the Phoenician Numeral Characters antiently used at Sidon. In a Letter to the Rev. Tho. Birch, D. D. Secret. R. S. from the Rev. John Swinton, M. A. of Christ-Church, Oxon. F. R. S. p. 791. CX. Of the Irregularities in the Motion of a Satellite arising from the Spheroidal Figure of its Primary Planet: In a Letter to the Rev. James Bradley, D. D. Astronomer Royal, F. R. S. and Member of the Royal Academy of Sciences at Paris; by Mr. Charles Walmsley, F. R. S. and Member of the Royal Academy of Sciences at Berlin, and of the Institute at Bologna. p. 809. CXI. Some Observations on the History of the Norfolk Boy. By J. Wall, M. D. In a Letter to the Rev. Charles Lyttelton, LL. D. Dean of Exeter. p. 836. CXII. Observations upon the Corona Solis Marina Americana; The American Sea-Sun-Crown. By John Andrew Peyssonel, M. D. F. R. S. p. 843. CXIII. An Account of several rare Species of Barnacles. In a Letter to Mr. Isaac Romilly, F. R. S. from John Ellis, Esq.; F. R. S. p. 845. CXIV. CONTENTS. CXIV. A further Account of the poisonous Effects of the Oenanthe Aquatica Succo viroso crocante of Lobel, or Hemlock Dropwort. By W. Watson, M. D. F. R. S. p. 856. CXV. Extract of a Letter to John Eaton Dodsworth, Esq; from Dr. George Forbes of Bermuda, relating to the Patella, or Limpet Fish, found there. p. 859. CVI. A Discourse on the Cinnamon, Cassia, or Cannella. By Taylor White, Esq; F. R. S. p. 860.