May 29, 1 8 79 J 



NATURE 



XXXVll 



DIARY OF SOCIETIES. 



London 



THURSDAY, May 29. 



Royal Society, at 8.30.— On the Conduction of Heat in Ellipsoids of 

 Revolution : Prof. C. Niven.— On a New Method of Investigating the 

 Magnetic Lines of Force in Magnets, demonstrating the Obliquity of the 

 Equator and Axis of Bar-Magnets ; Dr. Shettle. — Preliminary Report to 

 the Committee on Solar Physics on a Method of detecting the Unknown 

 Irregularities of a Series of Observations: Prof. B. Stewart and W. 

 Dodgson. — Researches on Explosives. No. II. Fired Gunpowder. 



Zooi-OGICAL Gardens, at 5. — Parrots: P. L. Sclater. 



Royal iNSTiTtn-ioN, at 3.— Dissociation : Prof. Dewar. 



HORTICULTURAI. SOCIETY. — Great Summer Show. 



FRIDAY, May 30. 

 Royal iNSTlTirrioN, at 9.— Colour-Sense in Insects: Grant Alien. 



Horticultural Society.— Great Summer Show. 



SA TURD A Y, May 31. 

 R»YAi Institution, at 3.— Swift: Prof. Morley. 



MONDAY, June 3. 

 Royal Institution, at 3.- German Literature : Prof. Hillebrand.— At 5.— 

 General Monthly Meeting. 



TUESDAY, June 3. 



Zoological Society, at 8.30.--A Description of the Vessels of the Neck 

 and Head of the Ground Hornbill : W. Ottley.— <)n the Specific Identity 

 of the British Marten Cats: E. R. Alston.- On Birds Collected by the 

 late Mr. T. K. Salmon in the Slate of Antioquia, U.S. of Colombia: 

 Messrs. Sclater and Salvin. 



Royal iNSTiTUTioN.at 3— Study of History: Prof. Seeley. 

 WEDNESDA Y, June 4. 



Ento.mological Society, at 7. 



THURSDAY, June 5. 



Chemical Society, at 8.— On Eardenine : Dr. Stenhouse and Mr. Groves. 

 —On the Theory of Fractional Distillation : F. D. Brown. — On the Action 

 of Organo-Zinc Compounds on Quinines : F. R. Yapp. — On Chlorstannic 

 Acid: J. W. Mallet, F.R.S.— On Indigo-Purpurin and Indi-Rupin: E. 

 Scbunck, F.R.S. — Third Report to the Chemical Society on some Points 

 in Chemical Dynamics : Dr. Wright, Mr. Luff, and Mr. Rennie. 



Royal Institution, at 3.— Study of Hiitorj- : Prof. Seeley. 



LiHNEAN Society, at 8.— Fenis of Northern India: C. B. Clarke.— Struc- 

 ture and Development, Skull of Urodelous Amphibia: Prof. W. K. 

 Parker.— Lichens of English Pular Expedition, 1S75-76 : Prof. Th. M. 

 Fries, of Upsala.— Mollusca cf ChalUrigcr Expedition, Part IV. : Rev. R. 

 Boog Watson. 



Zoological Gardens, at 4— Sn.-ikes : Prof. HiL\Iey. 

 FRIDAY, June 6. 



Royal Institution, at 9.— Spectroscopic Investigation: Prof. Dewar. 



Geologists* Association, at 8. 



SATURDAY, June 7. 

 Royal Institution, at 3. — Prof. Morley. 



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