724 



NA TURE 



[November 25, 1922 



conditions under which solutions of carbon dioxide 

 in 1 .1 11 -tic soda solutions can be titrated with accuracy. 

 — I.. J. Simon : The role of chromic oxide in oxidation 

 with chromic and sulphuric acids. — Paul Bertrand : 

 The co.ii flora of the Sarre coal measures. — R. 

 Legendre : Diurnal variations of the hydrogen ion 

 concentration of sea water near the coast. The 

 hydrogen ion concentration of sea water taken near 

 the coast varies during the day and passes through 

 a maximum at about 3 p.m. — S. Metalnikow : Ten 

 years' culture of infusoria without conjugation. — 

 C. Delezenne and Mile. Suzanne Ledebt : The trans- 

 mission in series of the proteolytic power initially 

 < on in rod on inactive pancreatic juice by enterokinase. 

 — Rene Wurmser and Raymond Jacquot : The rela- 

 tion between the colloidal state and the physiological 

 functions of protoplasm. — A. Pezard and F. Caridroit : 

 Subrenal-testicular interpenetration in incompletely 

 castrated cocks. — Edouard Chatton and Andre Lwoff : 

 The evolution of the infusoria of lamellibranchs. 

 The relations between the Hypocoma and Ancistrum. 

 The genus Hypocomides. — Et. Burnet : The relations 

 between B. Abortus and Micrococcus melitensis. — 

 J. Dumas. D. Combiesco. and J. Baltiano : The action 

 •of the tetanic and diphtheric toxins administered by 

 the mouth. Experimental tetanus can be produced 

 in the guinea-pig by adding the tetanus toxin to 

 the food, but the rabbit is resistant. On the other 

 hand, the rabbit is more sensitive than the guinea- 

 pig to the action of the diphtheric toxin administered 

 in the same way. These results are not in agreement 

 with the results of other workers, and this is explained 

 by the author by the fact that his preparations 

 contained more of the toxins. 



Official Publications Received. 



/,. C-. Iiiirt tiir ungewanclte (;,., 

 zahlreieher Faehg.-nosscn. Hera 

 Band 1, Heft 1. Pp. 32. (Berlir 



Memoirs oi the Indian Met 

 Part :; : Mean Monthly Charai 

 t'n.in tin Flights of l'il.it Balloons 



leal Department. Vol. 23, 

 I ppet- \ir Winds deduced 

 "teeu Stations in India dune- 

 the Period 1910 to 1919. By J. II. Field. Pp. 41-136. (Calcutta: 



Government Printing on,. , 1 2 rui s ; 3». 



liep.cl '.I tin- Urparl ill of Industries, Madras, for the Year 



ended 31st March 1921. Pp. v + 60+ii. (.Madias: Government 

 Prei - i 



Annals of the rrap-.aal .Museum. Vol. 8. Part i. containing 

 Review ol the Nomenclature of South African Birds, l>, \ Roberts; 

 An imperii 1 1 Skeh ton .a Ywi,i<iiiut Capensis, Broom, in the Collection 





Vol. 



lit tin' Henu.lptcT.-l 



G. helm. Part 1 : 

 9, Part 2. i uiii dip 

 M ; New Forms of 

 I. Aurivillius. Pp. 



101-141. m .iml.n !_■■ . l-iini. .1 at tin- University Press. 



Transaction- .a tin Lo.lulale Lit.T.irv and seientilic Society. 

 Vol. 14. 1919 1922 I'p 128 \i \i \i (Rochdale I 



Imperial Department c,i Vgriculture for the West Indies. Report 

 on the Agricultural Department, St. Lucia, 1921. Pp. iv+31. 

 (Barbados.) (W. 



Nigeria. Annual Report on the Forest Administration of Nigeria 

 for the fear 1021. Pp. is. (Ibadan.) 



The Botanical Society and Exchange Club of the British Isle.-. 

 Vol. ii. Pari :;. Report for 1921. By G. C Druce. Pp. 261-546, 

 (Arbroath : T. lium-le and Co.) 10s. 



shall the- State throw away the Keys? An Exposition of what 

 Fine Chemicals mean to the Nation. Pp. 32. (London : Assoi i ition 

 of British Chemical .Manufacturers. 190 Pieeadilh .) 



Diary of Societies. 



SATURDAY, November 25. 

 Association of Science Teachees and the Association or Uni- 

 versity Women Teachers (at. I'niversity College), at 11 and 2.30. 

 — Joint Conference on the Teaching of Science in Schools and 

 Colleges. 



MONDA Y, November 27. 

 Ai-.istotei.ian SOCIETY (at University of London (luh). at 8.— Prof. 

 R. I'. \. Hoernle : Notes on the Treatment of "Existence" in 



I'lul'iMipliii-al I. iler.il me 



Royal soc ietv of Arts, at S. — Prof. W. A. Bone : Brown Coal and 



Lignites (Cant. ir Lecture). 

 Royal Society of Mfpptne (Odontology Section), at 8. — Dr. P. 



Wat>iup\Villiapi- : Inieefiiui, of the Teeth and Gums in relation to 



the Nos . I Icicct. an I Ear 

 ItOYAI Ol OQKAPHlc VI. -o, li.rv (at .l.olian Hall), at 8.30.— C. (oilman : 



An Ascent oi Kilimanjaro, 



TUESDAY, November 28. 

 Royal Horticultural Society, at 3. — M. B. Crane : Self-Sterility 



and the Pollination of Fruit Trees. 

 Royal Society of Medicine (Medicine and Ophthalmology 



Sections). — Dr. B. Shaw, F. Moore, and others : Discussion on the 



Differentiation and Prognosis, if Artc-rio-Sc-leroticand Kenal Retinitis. 

 Institution of civil Fxginf.fcs. at c. -F. o. Forster-Brown : 



Underground Waters in the Kent Coalfield, and their incidence in 



Miui 



Institute oi- .marine Lngixi pp-. 1m . 



..I tin- Conquest ..t oil. Anglo-A rican 



Royal Photogbaphu society of Grea 



Saunders : on the & iti n i rai I. ..t tin- 1 

 Sociological Society (at Royal Societ 



Factors of Historical Changes in Society; 



6.30. — Film illustrative 

 P.ritain, at 7. — J. E. 

 at 8.15.— H. 11,-11. .1- : 



WEDNESDAY, NOVEMBER 29. 



Newcomen Society (Annual General Meeting) (at Iron and Steel 

 Institute), at 5. — At alio. — Ii. Jenkins: Notes on the Early History 

 of steel-making in England. 



ROYAL SOCIETY of Arts, at 8.— Major W. S. Tucker: The Hot Wire 

 Microphone and its Applications. 



THURSDAY, NOVEMBER 30. 



Royal Society, at 4.— Anniversary Meeting. 



Linnean society, at 5.— Dr. R. J. Tillyard : The Wing-venation of 

 tie- order Plectoptera, or May-flies. — D. M. S. Watson and E. L. 

 Gill : The Structure oi certain Palaeozoic DipnoL 



Kicmi. SociETy ,„■ Medicine, at :,. sir Umroth Wright: New 

 Principle in Therapeutic Immunisation (Occasional Lecture). 



chili. -mi py Society (at Royal Sanitarj Institute), at 6.— Dr. 

 A. F. Tredgold : s. - Prohlcius relal ing to .Mental Hcliciepev. 



Institution of Electrical Engineers, at G.— W. A. Gillott : 



Yh -slic Load Building: a Few Suggestions upon Propaganda 



Work. 



optical society (at Imperial College of Siicn.cc and Technol igj at 

 (!.— A. Whitwell: The Design of Spectacle Lenses -Dr. M. von 

 l.-.hi on the Available Means for Correcting ' considerable Cases 

 of Anisometropia. — A. Whitwell : Tie- I'.- -t Form oi Spectacle 

 Lenses lor the Correction ..i Small Amounts .>! Anisometropia. — 

 Dr. M. B. Dobson : Notes on the Non-operative treatment of 

 Squint.— 0. Raphael: Standards oi Accuracy tor Ophthalmic 

 Prescriptions. — W. A. Dixey: Some Recent Developments in 

 Spectacle Lenses- .1. II. Gardiner: Sir William Crookes' Anti- 

 glare Glasses II. S. Ryland : Methods used in the Manufacture of 



Cold 



life 



''Ol V.\ I 1.1 P. a I .s.l.'i. I . 1 0.1. 1. 1 1 1- : \ Peep .1 I I '1 elii-l . Tie Mall 



ROYAL Society of .Medicine (Urology Section), at 8.3(1. — Dr. Langdon 

 Brown and others : Discussion on the Factors in Ursemia. 



FRIDAY, December 1. 

 Institution of Mechanical Engineers, at 0. — Dr. T. E. Stanton: 



Some Recent Researches on Lubrication c I'l a- llawksley Lecture I. 



JUNIOE Institution of Engineers, at 7.30. — H. G. Brown : Machines 



used in Magnetic Separation. 



PUBLIC LECTURES. 



SATURDAY, November 25. 

 MUSEUM (Forest Hill', at 3.30.— F. Balfour-Browm : 



MONDA Y, November 27. 

 University Colleoi . at 5.30 -Miss L. Jeffries i>a\is : The Evolution 



of London Sip . , e on I - i tun - on December J and 11. 

 i iiy ..i London \ \|c \ c i sc, AMcrsgatc street), at 6. — Col. Sir 



William H. Willcox : Rheumatism and how to avoid it. 



TUESDAY, November 28. 

 School of Oriental Studies, at 5. — Sheikh M. H. Abd el Razek : 

 Tlie stinly of Moslem Civilisation in Europe. 



THURSDAY, November 30. 

 King's College, at 5.30. — N. P. Jopson : The Distribution and Inter- 



relations of the Slavonic Peoples and Languages. 

 University College, at 5.30. — Dr. C. Pellizzi : Platone e 1'Umanesuno 



(in Italian). 



FRIDAY, December 1. 



Royal Institute of Public Health, at 5. — Prof. T. Mad-, n : 

 Spc-c-ilic- and I'nspeeilic Antitoxin Production (Harben Lecture). 



I'.riciccpp College for Women, at 5. 30. — Miss E. Jeffries Davis: 

 Roman London. 



SATURDAY, DECEMBER 2. 

 Horniman Museum (Forest Hill), at 3.30. — Dr. E. Marion Delf : 

 Vitamins and Health. 



NO. 2769, VOL. I IO] 



