Jtme \2, 1879 



NATURE 



Uii 



DIARY OF SOCIETIES. 



London 



THURSDAY, Jc.ne 12. 

 Royal SocraTY, at 4. 



Mathematical Society, at 8.— Xotes on (i) the Momental Plane ; (2) a 

 Property of Plane Curves ; (3) a Prize Question of the Belgian Academy 

 of Sciences : J. J. Walker.— Note on Delerminants of k Dimensions : 

 Lloyd Tanner.— Cases of Polygonal Inscription in a Circle ; Rev. Dr. 

 Freeth. 

 Royal Institution, at 3.— German Literature: Prof. Hillebr.and. 

 Zoological Society, at 4.— Nociurnal Animals: Dr. Murie. 



FRIDAY, June 13. 

 Royal Institution, at 9.— The 7'/i»«n'f^fr Gun Explosion: F. J. Bram 



v.ell. 

 QuEKBTT Microscopical Club, at 8. 



SATURDAY, June 14. 



Physical Society, at 3 —On the Suppression of the Induction Disturbance 



of the Telephone : Prof. H. McLeod.— On the Sensitive St.-ite of lilectric 



Discharges through Rarefied Media : W. Spottiswoode and J. F. Moulton. 



—On a New Measuring Polariscope : Prof. W. G. Adams. 



Geologists' Association.— E.xcursion to Sevenoaks and TunbriJgc. 



MONDAY, June 16. 

 Victoria Institute, at 8.— Annual Address. 



TUESDAY, June 17. 

 Zoological Society, at 8.30.— On the Molluscs procured during the 

 Lightning and Pcrcupine Expeditions. 1S62-70. Part a: J. Gwyn 

 Jeffreys, F.R.S.— On the Acanthamys Uncopus of Gray: Edw-ard R. 

 Alston, F.Z.S.— On the Manatee: Dr. J. Murie. 

 WEDNESDAY, lv^2. x'i. 

 Meteorological Society, at 7.— Report on the Intemarional Meteoro- 

 logical Congress held at Rome, April, 1879 ■ Robert H. Scott, F.R.S.— 

 Therrnoraeter Exposure— Wall versus Stevenson's Screens : William 

 Marriott. — On the Hurricane at Mauritius on March 20-21, 1870 : Charles 

 Meldrum, F.R.S. — On a Remarkable Disturbance of Barometric Pressure 

 observed at the Royal Observatory, Greenwich, en May 18, 1878 : Wiiliam 

 Ellis. F.R.A.S.— Meteorology of Mozufferpore, Tirhoot, 1878: Charles 

 N. Pearson. 

 Croydon Microscopical Club, at 8.30. 



THURSDAY, June 19 

 Royal Society, at 8.30.— On the Existence of Liebreich's Protagon in the 

 Brain : A. Garagee and E. Blankenhorn.— The Measurement of the Ratio 

 of Lateral Contraction to Longitudinal Extension of a Body under Strain : 

 A. Mallock.— The Determinarion of the Effects of Tidal Friction by a 

 Graphical Method ; G. H. Darwin. — An Account of Experiments on the 

 Influence of Colloids upon Crystalline Form, and on Movements observed 

 in Mixtures of Colloids with Crystalbids ; and other Papers : Dr. W. M. 

 Ord. 

 Cke.mical Society, at 8.— On Gardenin : Dr. Stenhouse and Mr. Groves. 

 — ( )n the Action f f Sulphuric Acid on the Hydrocarbons of the Formula 

 CjoHic.: Drs. Armstrong and Gilden. — Researches on the Terpenes, 

 Camphor, and Allied Compounds, Parts i and 2 ; Dr. Armstrong.— Con- 

 tributions to the History of Starch and its Transformations : H. T. Brown. 

 —On the Boiling Points of Certain Metals and Metallic Salts : Dr. Carnclly 

 and W. C. Williams.- On the Determination of Nitric Acid by Means of 

 Indigo : R. Waringlon.— On Dry Copper-Zinc Couples and Analogous 

 Agenu : Dr. Gladstone and Mr. Tribe.- Notes on the Purple of the 

 Ancients: R. Schunck. 

 Linnean Society, at 8.- Carpesium as Indigenous to Australia : F. M. 

 Bailey.— Flora of Nortliern China: J. G. Baker and S. Le Marchant 

 Moure.— New Polyzoa : Prof, G. Busk.— -Australian Lichens in R. 

 Brown s Herbarium : Rev. J. M. Crombie. 



WANTED, Clean Copies of NATURE, No. 472, 

 for November 14, 1878. Address — Office of 

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