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the Papers Philosophical Transactions ABSTRACTS / OF THE PAPERS PRINTED IN THE PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON, From 1800 to1830 inclusive. VOL. I. 1800 to 1814. PRINTED, BY ORDER OF THE PRESIDENT AND COUNCIL, From the Journal Book of the Society. LONDON: PRINTED BY RICHARD TAYLOR, RED LION COURT, FLEET STREET. CONTENTS. VOL. I 1800. The Croonian Lecture. On the Structure and Uses of the Meinbrana Tympani of the Ear. By Everard Home, Esq. F.R.S. ................page 1 On the Method of determining, from the real Probabilities of Life, the Values of Contingent Reversions in which three Lives are involved in the Survivorship. By William Morgan, Esq. F.R.S.................... 4 Abstract of a Register of the Barometer, Thermometer, and Rain, at Lyndon, in Rutland, for the year 1798. By Thomas Barker, Esq.... 5 n the Power of penetrating into Space by Telescopes; with a com­ parative Determination of the Extent of that Power in natural Vision, and in Telescopes of various Sizes and Constructions ; illustrated by select Observations. By William Herschel, LL.D. F.R.S......... 5 A second Appendix to the improved Solution of a Problem in physical Astronomy, inserted in the Philosophical Transactions for the Year 1798, containing some further Remarks, and improved Formulae for computing the Coefficients A and B ; by which the arithmetical Work is considerably shortened and facilitated. By the Rev. John Hellins, B.D. F.R.S. .......................................... .................................. 7 Account of a Peculiarity in the Distribution of the Arteries sent to the ‘ Limbs of slow-moving Animals; together with some other similar Facts. In a Letter from Mr. Anthony Carlisle, Surgeon, to John ISymmons, Esq. F.R.S............ ..................................... ...................... 7 Outlines of Experiments and Inquiries respecting Sound and Light. By Thomas Young, M.D. F.R.S........ ................. ................................ 8 Observations on the Effects which take place from the Destruction of the Membrana Tympani of the Ear. By Mr. Astley Cooper ....... 10 Experiments and Observations on the Light which is spontaneously emitted, with some degree of Permanency, from various Bodies. By Nathaniel Hulme, M.D. F.R.S. ......................................................... n Account of a Series of Experiments, undertaken with the view of de­ composing the Muriatic Acid. By Mr. William Henry ................ 14 On double Images caused by atmospherical Refraction. By William Hyde Wollaston, M.D. F.R.S................................ .............................. 16 On a new fulminating Mercury. By Edward Howard, Esq. F.R.S.... 1& a 2 iv Investigation of the Powers of the prismatic Colours to heat and illu­ minate Objects; with Remarks, that prove the different Refrangi- bility of radiant Heat. To which is added, an Inquiry into the Method of viewing the Sun advantageously, with Telescopes of large Apertures and high magnifying Powers. By William Herschel, LL.D. F.R.S. Part I ...................... ............................................. 20 Experiments on the Refrangibility of the invisible Rays of the Sun. By William Herschel, LL.D. F.R.S........................................................ 22 Experiments on the solar, and on the terrestrial Rays that occasion H eat; with a comparative View of the Laws to which Light and Heat/ or rather the Rays which occasion them, are subject, in order to determine whether they are the same, or different. By William Herschel, LL.D. F.R.S. .......................................................................... 23 Chemical Experiments on Zoophytes; with some Observations on the component parts of Membrane. By Charles Hatchett, Esq. F. R. S.... 25 On the Electricity excited by the mere Contact of conducting Sub­ stances of different Kinds. In a Letter from Mr. Alexander Volta, F.R.S. to the Right Hon. Sir Joseph Banks, Bart. K.B. P.R.S. ... 27 Some Observations on the Head of the Ornithorhynchus paradoxus. By Everard Home, Esq. F.R.S. ............................................................. 29 Experiments on the solar, and on the terrestrial Rays that occasion Heat; with a comparative View of the Laws to which Light and Heat, or rather the Rays which occasion them, are subject, in order to determine whether they are the same, or different. By William Herschel, LL.D. F.R.S. Part II.......................................................... 30 An Account of the Trigonometrical Survey, carried on in the Years 1797, 1798, and 1799, by Order of Marquis Cornwallis. By Capt. William Mudge, F.R .S............................... .............................................. 33 1801. The Croonian Lecture. On the Irritability of Nerves. By Everard Home, Esq. F.R.S................................................................. ............... page 33 The Bakerian Lecture. On the Mechanism of the Eye. By Thomas Young, M.D. F.R .S........................................................................ ......... 35 On the necessary Truth of certain Conclusions obtained by Means of Imaginary Quantities. By Robert Woodhouse, A.M........................ 39 On the Production of Artificial Cold by Means of Muriate of Lime. By Mr. Richard Walker ......................................................................... 40 Account of a monstrous Lamb. In a Letter from Mr. Anthony Car­ lisle to the Right Hon. Sir Joseph Banks, Bart. K.B. P.R.S............ 41 An Anatomical Description of a male Rhinoceros. By Mr. H. Leigh Thomas, Surgeon ...................................................................................... 41 Demonstration of a Theorem, by which such Portions of the Solidity of a Sphere are assigned as admit an algebraic Expression. By Robert Woodhouse, A.M......... ........................................................ 42 Account of the Discovery of Silver in Herland Copper Mine. By John Hawkins, Esq......................................... 42 Account of an Elephant’s Tusk, in which the Iron Head of a Spear was found imbedded. By Mr. Charles Combe .................................. 43 Description of the Arseniates of Copper, and of Iron, from the County of Cornwall. By the Count de Bournon .....................................page 43 Analysis of the Arseniates of Copper, and of Iron, described in the pre­ ceding Paper; likewise an Analysis of the red octaedral Copper Ore of Cornwall; with Remarks on some particular Modes of Analysis. By Richard Chenevix, Esq. M.R.I.A. ................................................. 45 A Historical and Anatomical Description of a doubtful amphibious Animal of Germany, called, by Laurenti, Proteus Anguinus. By Charles Schreibers, M.D.......................................................... ............... 47 Observations tending to investigate the Nature of the Sun, in order to find the Causes or Symptoms of its variable Emission of Light and Heat; with Remarks on the Use that may possibly be drawn from Solar Observations. By William Herschel, LL.D. F.R.S................ 49 Observations on the Structure, and Mode of Growth, of the grinding Teeth of the Wild Boar, and Animal incognitum. By Everard Home, Esq. F.R.S................................... ................................................ 52 Account of some Experiments on the Ascent of the Sap in Trees. In a Letter from Thomas Andrew Knight, Esq. to the Right Hon. Sir Joseph Banks, Bart. K.B. P.R.S......................... ........................... 53 Additional Observations tending to investigate the Symptoms of the variable Emission of the Light and Heat of the Sun ; with Trials to set aside darkening Glasses, by transmitting the Solar Rays through Liquids; and a few Remarks to remove Objections that might be made against some of the Arguments contained in the former Paper. By William Herschel, LL.D. F.R.S. ................................................... 55 On an improved Reflecting Circle. By Joseph de Mendoza Rios, Esq. F.R.S................................... .............................................................. 56 Observations and Experiments upon Dr. James’s Powder; with a Method of preparing, in the humid Way, a similar Substance. By Richard Chenevix, Esq. F.R.S. M.R.I.A. ............. ........................... 57 Case of a young Gentleman, who recovered his Sight when seven Years of Age, after having been deprived of it by Cataracts, before he was a Year old; with Remarks. By Mr. James Ware, Surgeon ...... 58 An Account of some Galvanic Combinations, formed by the Arrange­ ment of single metallic Plates and Fluids, analogous to the new Gal­ vanic Apparatus of Mr. Volta. By Mr. Humphry Davy ................ 59 A Continuation of the Experiments and Observations on the Light which is spontaneously emitted from various Bodies; with some Ex­ periments and Observations on Solar Light, when imbibed by Can­ ton’s Phosphorus. By Nathaniel Hulme, M.D. F.R.S. and A.S.... 60 Experiments on the Chemical Production and Agency of Electricity. By William Hyde Wollaston, M.D. F.R.S................... ...................... 61 Further Observations on the Effects which take place from the De­ struction of the Membrana Tympani of the Ear; with an Account of an Operation for the Removal of a particular Species of Deafness. By Mr. Astley Cooper ................................ ......................................... 62 vi 1802. The Croonian Lecture. On the Power of the Eye to adjust itself to different Distances, when deprived of the Crystalline Lens. By Everard Home, Esq. F.R.S. ".
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