87 



Royal Society of London, I. Philo- 

 sophical Transactions. For the year 

 1871. Vol. 161. Part II. For the year 1872. 

 Vol. 162. Part I. — London 1872. 4°. 



Vol. 161. P. II. W. J. M. Rankine: On the 

 Mathematical Theory of Streamiines, especially those 

 with four Foci and upwards. E. Sabine: Re- 

 cords of the Magnetic Plienomena at the Kew Ob- 

 servatory. No. IV. Analysis ot the principal Dis- 

 turbances shown by the Horizontal and Vertical 

 Force Magnetometers of the Kew Observatory, from 

 1859 to 1604. G. Gore: Ün Fluoride of Silver 

 Part IL Archdeacon Pratt: On the Consti- 

 tution of the Solid Crust of tlie Karth. N. Story- 

 Maskelyne: On the Mineral Constituents of Me- 

 teorites. A. Cayley: On the Problem of. the 

 In-and-Circumscribed Triangle. E. J. Reed: On 

 the Uneqnal Distribution of Weight and Support 

 m Ships, and its Effects in Still Water, in Waves, 

 and in Exceptional Positions on Shore. H. E. 

 Roscoe and T. E, Thorpe: On the Measure- 

 ment of the Chemical Inteusity of Total Daylight 

 made at Catania duriug the Total Eclipse of Dec. 

 22nd, 1870. W. C. Williamson: On the Organi- 

 zation of the Fossil Plauts of the Coalmeasures. 

 Part L Calaraites. A.Günther: Description of 

 Ceratodus, a genus of Ganoid Fishes. receutly dis- 

 covered in Rivers of Queensland, Austraha. C. 

 Gibson and T. Barclay: Measurements of Spe- 

 cific Inductive Capacity of Dielectrics, in the Phy- 

 sical Laboratory of the University of Glasgow. 

 J. Casey: On Cyclides and Sphero-Quartics. 



Vol. 162. P. 1. E. J. Stone: An Experimental 

 Determination of the Velocity of Sound. St. J. 

 Perry: Magnetic Survey of the Fast of France 

 in 1869. P. M. Duncan: On the Structure and 

 Affinities of Guynia annulata, with Remarks upon 

 the Persistence of Palaeozoic Types of Madreporaria. 

 Owen: On the Fossil Mammals of Australia. 

 Part V. Genus Nototherium, Ow. Part VI. Genus 

 Phascolomys, Geotfr. Prof. Cayley: Corrections 

 and Additions to the Memoir on the Theory of 

 Reciprocal Surfaces (Phil. Transact. 1869. Vol. 159). 

 G. B. Airy: Corrections to the Computed Lengths 

 of Waves of Light pubhshed in the Philosophical 

 Transactions of'the year 1668. C. Schorle mmer: 

 On the Normal PaTaflins. A. Macali st er: The 

 Myology of the Cheiroptera. W. C. Williamson : 

 On the Organisation of the Fossil Plauts of the 

 Coal-measures P. II. Lycopodiaceae, Lepidodendra 

 and Sigülariae. 



— n. Proceedings. VoL XX, Nr, 130 

 — 138. 80. 



J. Thomson: Cdnsiderations on the Abrupt 

 Change at Boiling or Condensing in reference to 

 the Continuity of the Fluid State of Matter. C. R. 

 A. Wright: Contributions to the History of the 

 Opium Alkaloids. P. III. W. Shanks: Second 

 Paper on the Numerical Values of f, log « 2, log c 3, 

 log c 5, and log e 10 ; also on the Numerical Value 

 of M, the Modulus of the Common Systeme of 

 Logarithms, all to 205 decimals. — Second Paper 

 on the Numerical Value of Euler"s Constant, and 



on the Summation of the Harmonie Series employed 

 in obtaining such Value. E. J. Stone: An Ex- 

 perimeutal Determhiation of the Velocity of Sound. 

 G. B. Airy: On a supposed Alteration in the 

 amoimt of Astronomiral Aberration of Light, pro- 

 duced by the passage of the Light tlu-ough a con- 

 siderable thickness of Refracting Medium. J. Perry 

 and W. Sidgreaves: Magnetic Survey of the 

 East of France in 1869. Ch. Tomlinson: On 

 the Behaviour of Supersatwafed Saline Solutions 

 when exposed to the Open Air. W. Huggius: 

 Note on the Spectrura of Encke's Comet. — Anni- 

 versary Meeting. Owen: On the Fossil Mammals 

 of Australia. Part VI. Genus Phascolomys, Geoifr. 

 G. Ciore: On the Solvent Power of Liquid Cya- 

 nogen. — On Fluoride of Silver. Part III. J. 

 Stenhouse: Contributions to the History of Orciu. 

 No. II. Chlorine- and Bromine -Substitution Com- 

 pounds of the Orcins. — Note on Fucusol. W. 

 de la Rue, B. Stewart, and B. Loewy: On 

 some recent Kesearches in Solar Physies, and a 

 Law regulatmg the time of duration of the Sun- 

 spotPeriod. W. Huggins: Note on the Telescopic 

 Appearance of Encke's Comet. D. M. Farlane: 

 Experiments made to determine Surface - conducti- 

 vity for Heat in Absolute Measure. A. Maca- 

 lister: The Myology of the Cheiroptera. W. C. 

 W"illiamson: Notice of further Researches on 

 the Fossil Plauts of the Coal - measures. G. S. 

 Nares: Investigations of the' Currents in theStrait 

 of Gibraltar, made in August 1871. Ch. Cham- 

 bers: The Absolute Dhection and Inteusity of the 

 Earth's Magnetic Force at Bombay, and its Secular 

 and Annual Variations. A. D u p r e : On the Eh- 

 minatiou of Alcohol. Ch. Tomlinson: On the 

 Action of Low Temperatures on Supersatiu'ated 

 Solutions of Glauber's Salt. F. Le Gros Clark: 

 Some Remarks on the Mechanisra of Respiration. 

 Ch. Chambers: On the Lunar Variations of 

 Magnetic Declination at Bombay. C. Piazzi 

 Smyth: Note on a possible Ultra-Solar Spectro- 

 scopic Phenomenon. C. Schorlemmer: On the 

 Normal Paraffins. M. Janssen: Note on the 

 Eclipse of the Sun (Dec. 1871 1 as observed at 

 Sholoor. W. Noel Hartley: Experiments con- 

 cerning the Evolution of Life from Lifeless Matter. 

 G. Biddell Airy: Experiments on the directive 

 power of large Steele Magnets, of Bars of Magne- 

 tized Soft Iron, and of Galvanic Coils, in their 

 action on externa! small Magnets. M. J. Raynaud : 

 On a mode of Measuring the Internal Resistance 

 of a Multiple Battery by adjustiug the Galvano- 

 meter to Zero. J. C. Maxwell: Ou the Induction 

 of Electric Currents in an Infinite Plane Sheet of 

 uniform conductivity. P. Griess: On some Deri- 

 vatives of Uramidobenzoic Acid. W. Spottis- 

 woode: On the Contact of Surfaces. W. White- 

 house: On a New Hygrometer. F. Crace- 

 Calvert: On Putrefaction. — On the Relative 

 Power of Various Substauces in preventing Putre- 

 faction and the Development of Protoplasmic and 

 Fungus-Life. — On the Relative Power of Various 

 Substauces in arresting Putrefaction and the Deve- 

 lopment of Protoplasmic and Fungus-Life. W. de 

 la Rue: The Observations taken with the Kew 

 Heliograph. — Further Investigations on Planetary 



