March 6, 1S79] 



NATURE 



cxii 



DIARY OF SOCIETIES. 



London 



THURSDAY, March 6. 



Royal Society, at 8. jo. — Observations on the Physiology of the Xerv.-us 

 System of the Crayfish {Aslacus fluviatilis): J. Ward. — Preliminary Re- 

 port upon the Comatulae of the ChalUyiger Expedition : P. H. Carpenter. 

 — On the Character of the Pelvis in the Mammalia and the Conclusions 

 respecting the Origin of Mammals which may be based upon them : Prof. 

 Huxley, Sec. R.S. — The Influence of Electricity on Colliding Water 

 Drops : Lord Rayleigh. — Second Paper on the Influence of Coal-Dust in 

 Colliery Explosions : W. Galloway. 



LiNKEAN SociKTY, at 8.— On Bacterium lactis : G. R. Milne Mturay. — 

 Classification of the Maioid Crustacea or Oxyrhyncha: Edward J. Miers. 



Royal Institittion, at 3.— Sound : Prof. Tyndall. 



London Institutio.v, at 7.— English Pronunciation : E. B. Xicholson. 



Chemical Society, at 8. — The Quantitative Blow-pipe Assay of Mercury: 

 G. Attwood.— On Gas Analysis and Gas Apparatus: T. \V. Thomas. — 

 The Isomeric Dinaphtyls : Watson Smith — On the Action of Isomorphoos 

 Salts in exciting the Crystallisation of Supersattirated Solutions ot each 

 ether : T. M. Thomson. 



FRIDAY, Masch 7. 



Royal iNSTrrirriON, at 9 —Prof. Huxlev. 



Society of Arts, at 3.— The Plants of ^ndia for Commercial Purposes : 

 J. R. Jackson. 



Royal College of Surgeons, at 4. — Comparative Anatomy of Man: Prof. 

 Flower. 



Geologists' Association, at 8. — On the Insect Fauna of the Pabeozoic 

 Period, and the British and Foreign Formations of that Period in which 

 Insect Remains have been detected : H. Goss, F.G.S., F.L.S. 

 SATURDAY, March S. 



Royal Institution, at 3. — Colbert and Richelieu: W. H. Pollock. 



Physical Society, at 3.— On a Xew Theory of Terrestrial Magnetism : 

 Professors Ayrton and Perry. — On some Experiments with the Quadrant 

 Electrometer : Dr. J. Hopkinson. — On the Maintenance of Constant Tem- 

 peratures and Pressures : F. D. Brown. 



SUNDAY, March 9. 



Sunday Lectitrb Society, at 4. — The Heroism o£ Ncn-Coaf orming : Mrs. 

 Fenwick Miller. 



MONDAY, March 10. 



London Institution, at 5.— Theory of Combustion : H. A. Severn. 



RoY.\L College of Surgeons, at ^. — Comparative Anatomy of Man : Prof. 

 Flower. 



Royal Geographical Society, at 8.30.— The Second Circuranavjgation 

 of Lake Xyassa : Dr. James Stewart. 



Society of Arts, at 8. — Dwelling Houses: Dr. Corfield. 



Medic.\l Society, at 8.>3. 



TUESDAY, March ii. 



Royal Institution, at 3. — Animal Development : Pro£ Schafer. 



Anthropological Institute, at 8. — The Geographical Distribution of 

 Games: E. B. Tylor, F.R.S.— On Gaelic Mythology : Hector Maclean. 



Horticultural Society, at i. — Scientific Committee. 

 WEDNESDAY, March 12. 



Royal Microscopical Society, at 8. — A Contribution to the Knowledge 

 of British Oribatidae: A. D. Michael. — On the Development of the Fat 

 Cell : Mr. and Mrs. Hoggan. 



Geological Society, at 8. — On Conodonts from the Chazy and Cincinnati 

 Groups of the Cambro-Silurian. and from the Hamilton and Genesee Shale 

 Divisions of the Devonian, in Canada and the United States : G. Jenrings 

 Hinde. — On Annelid Jaws from the Cambro-Silurian. Silurian, and 

 Devonian Formations in Canada, and from the Lower Carboniferous in 

 Scotland: G. Jeimings Hinde. — The Gold-leads cf Xova Scotia: H. S. 

 Poole, M.A.— -On Perlitic and Sphaerulitic Structures in the Lavas of the 

 Glyder Fawr, Xorth Wales : Frank Rntley. 



Royal College of Sup.geons, at 4.— Comparative Anatomy of Man : Prof. 

 Flower. 



Society of Arts, at 8.— Compensation of Watches. <%c. : Edward Rigg. 



Society of Telegraph Engineers, at 8. — Adjoimied Discussion on Mi. 

 Willoughby Smith's Paper on the Working of Long Submarine Cables, and 

 Mr. Jas. Graves's Paper on Curbed Signals for Long Cables. — Experi- 

 mental Researches into Means of Preventing Induction upon Lateral 

 Wires ; Prof. D. E. Hughes. 



THURSDAY, M.A.RCH 13. 



Royal Society, at 8.30. 



Royal Institution, at 3.— Sound: Prof. TyndalL 



Mathematical Society, at 8. — On Difierential Equations, Total and 

 Partial, and on a Xew Soluble Class of the First and an Exceptional Case 

 of the Second : Sir J. Ccckle, F.R.S. — Discussion of Two Double Series 

 arising from the Xumber of "Terms in Determinants of Certain Forms : 

 J. D. H. Dickson. — A Property cf the Discriminant o£ the Cubic : IVof. 

 H. J. S. Smith, F.R.S. 



London iNSTiTimoN, at 7. — English Composers for the Mrginal and 

 Harpsichord: Ernest Pauer. 



Society of Arts, at 8. — Injurious Effects of Air of Large Towns : W. 

 TKomson. ' ^ 



FRIDAY, March 14. 



Royal College of Surgeons, at 4. — Comparative Anatomy of Man : Prof. 

 Flower. 



Royal Institution, at 9. — History of Games: E. B. Tylor. 



Quekett Microscopical Club, at 8. 



SATURDAY, March 15. 



Royal Institution, at 3.— Colbert and Richelieu : W. H. Pollock. 



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