June 19, 1879] 



NATURE 



Ixi 



DIARY OF SOCIETIES. 



London 



THVRSDA Y, Ju.vK 19. 



Royal Society, at 8.30.-011 the Existence of Liebreich's Protagon in the 

 Brain : A. Gamgee and E. BJankenhom. — The Measurement of the Ratio 

 of Latel^l Contraction to Longitudinal Extension of a Body under Strain: 

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

 Graphical Method_ : G. H. Darwin. — An Account of Experiments en the 

 Influence of Colloids upon Crystalline Form, and on Movements obserted 

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

 Ord. 



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

 — On the Action of Sulphuric Acid en the Hydrocarbons of the Formula 

 C,oH,6: Drs. Armstrong and Gilden.— Researches on the Terpenes, 

 Camphor, and Allied Comjjonnds, 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 Metalhc Salts : Dr. Carnelly 

 and W. C. Williams.— On the Determination of Nitric Acid by Means c f 

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

 Agents : Dr. Gladstone and Mr. Tribe.— Notes on the Purple of the 

 Ancients: R. Schunck. 



LiNKEAN Society, at 8.— Carpesium as Indigenous to Australia: F. M. 

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

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

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



MONDAY, June 23. 



Geographical Society, at 8.30.— Reports received iVom Mr. Keith John- 

 ston, Commanding the East African Expedition :— <i) Excursion to the 

 Usambara Hills ; (2) Information obtained regarding Routes between 

 Dar-es-Salaam and Lake Nyassa. 



TVMSDAY, June 24. 



A.VTHROTOLOGICAL INSTITUTE, at 8.— On the Osteology of the Natives of 

 the Andaman Islands : Prof. W. H. Flower, LL.D., F.R.S.— On Paleo- 

 lithic Implements from the Valley of the Brent: Worthington G. Smith, 

 F.L.S. — "Kemp How" Cowlam : J. R. Mortimer. — Portstewart and 

 other Flint Factories of the North of Ireland : W. J. Knowles.— On some 

 Eskimos Bone Implements from the East Coast of Greenland : W. 1. 

 Sollas, M.A., F.G.S. ^ 



Metropolitan Scientific Association, at 7.— Annual Meeting. 



West London Scientific Association, at 8. 



Horticultural Society, at i.— Scientific Commitiee. 

 WBDNESDA Y, Ju.vE 25. 



Geological Society, at 8.— The Formation of Kock-Basins : J. D. Ken- 

 dall, C,£. — On Lepidodisciis Lebmiri, a New Species of Aeelacrinites, 

 from the Carboniferous Series of Northumberland: W. Percy Sladen. — 

 On Evidence that Certain Species of Ichihyosnurus were Viviparous : 

 Prof. H. G. Seeley, T .\..ii.—Oa Dolkhccefkalus Prestivichi, Seelcy, an 

 Ornithosaurian from the Stonesfield Slate of Kinetcn : Prof. H. G. Seeley. 

 — On the Physical Geography of the North-East of England in Permian 

 and 'I'riassic Times: E. Wilson.— On the Diorites of the Warwickshire 

 Coal-Field : S. Allport.— A Contribution to South-American Geology: 

 George Altwood. — (Jn the so-called Midford Sands : J. Buckman.— On 

 the Ancient River-Deposit of the Amazon: C. B. Brown. Assoc. R.S.M. 

 — The Glacial Deposits of Cromer : Clement Reid. — Notes on a Disturb- 

 ance of the Chalk at Trowse, near Norwich.— The Submerged Forest of 

 Barnstaple Bay; T. M. Hall.— On a Section of Boulder Clay and Gravels 

 at Balleygalley Head, and an Inquiry as to the Proper Classification of 

 the Irish Drift: T. Mcllard Reade.— On the Augilic Rocks of the Canary 

 Islands: Salvador Calderon. Communicated by the President.— On the 

 Cambrian (Sedgw.) and Silurian Beds of the Dee Valley, as compared with 

 those of the Lake-District : J. E. Marr.— On some Superficial Deposits in 

 the Neighbourhood of Evesham : Rev. A. H. W. Ingram. 



Royal Society of Literature, at 8. 1 On the Paris Literary Congress of 



1878, and the International Literary Association : C. H. E. Carmichael. 



FRIDAY, June 27. 



QirnxsTT Microscopical Club, at 8. 



SA TURD A y, June 28. 



Physical Society, at 3. 



Geologists' Association.— Excursion to Tunbridge and Tunbridge Wells. 



WANTED, Clean Copies of NATURE, No. 472, 

 for November 14, 1878. Address—Office of 

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