February 3, 192 1] 



NATURE 



747 



and Russula. The reagent is methyl chloroanti- 

 moniale in methyl alcohol solution. Ihe colour re- 

 actions with eighteen species of Russula are given. — 

 A. Pizard : The law of "all or nothing " or of func- 

 tional constancy relating to the action of the testicle. 

 — M. Bez»»oDoB : The antiscorbutic action of raw 

 potato, ground and intact. — J. Nageotte : The struc- 

 ture of the cornea. — R. Dubois : Maternal affection in 

 the electric skate (Torpedo moniiorotae). Just before 

 the birth of her young a specimen of this fish gave 

 strong electric shocks, but after the birth of seven 

 voung the fish, although vigorous, gave no more 

 shocks, and with the young fish about it could be 

 readily handled. When the young were removed the 

 shocks were as strong as before. This shows that 

 the electrical discharge is not a reflex action, but 

 voluntary, and can be suppressed when likely to be a 

 danger to the young. — MM. CInzet, Rochalx, and 

 Kolinan : The bactericidal action of the radiation from 

 r.n<lium tubes employed in radium therapy. — F. 

 d'Herelle : The bacteriophage micro-organism, the 

 agent of immunity in plague and barbone. — A. Paine 

 and A. Peyron :' The neoplasic transformation of 

 striated muscular fibre with visceral metastasis in the 

 •■volution of experimental sarcoma in birds. 



Books Received. 



Ha.sii: Slags : Their Production and Utilisation in 

 \griculture. (.\ General Discussion held by the Fara- 

 la) Society on Tuesday, March 23, 1920.) Pp. 259- 

 ,35. (London : The Faraday .Society.) y.v. 6d. 



The Botanical Society and Exchange Club of the 

 British Isles. Vol. v., part v. Report for 1919. 

 1 Arbroiith : T. Buncle and Co.) ys. 6d. 



The Observer's Handbook for 1021. (Thirteenth 

 vear of publication.) Pp. 64. (Toronto : Royal 

 \stronomical So<-ifty of Canada.) 



State of Connecticut. Public Document No. 24. 

 I'orty-third .Annual Report of the Connecticut .Agri- 

 > ultural Experiment Station, being the .Annual Report 

 for the Year ended October ji, 1919. Pp. xvi+so6+ 

 Ivi plates. (New Haven, Conn.) 



Department of the Interior. U.S. Geological 

 survey. Uulletin 682 : Marble Resources of South- 

 astern .Alaska. By E. F. Burchard. Pp. 118+ 

 sxvi plates. Bulletin 697: Gvpsum Deposits of the 

 United States. By R. W. Stone and others. Pp. 

 ;26+xxxvii folates. Bulletin 712 : Mineral Resources 



■ f Alaska. Report on Progress of Investigations in 

 •118. By G. C. Martin and others. Pp. iii + 204+ 

 v + vi plates. (Washington: Government Printing 

 XTirc.) 



Inorganic Chemistry. By F,. I. Lewis. Third 



■ lition. Pp. xv+445. CCambri<lge : .At the Iniver- 

 -ity Press.) o.«. net. 



Approved Technique of the Rideal-Walker Test. 

 Uy Dr. S. Rkleal and Capt. J. T. A. Walker. Pp. 12. 

 fLondon : H. K. Lewis and Co.. Ltd.) i.v. net. 



Th<' Subject-Index to Periodicals, 1917-19. F : 

 Education and Child Welfare. Pp. 87. (London : 

 The Library Association.) 4s. net. 



The Bases of Agricultural Practice and Economics 

 I in the I'nited Provinces, Iwlia. By Dr. H. M. I^eake. 

 Pp. vlii + 277. (Cambridge: W. Heffer and Sons, 

 Ltd.) t^s. net. 



Wisconsin Geological and Natural History Survev. 

 Hiilletin No. 57. Scientific Series No. 12: Phyto- 

 'lankton of the InlamI I.akes of W'isconsln. Part i. 

 I!v G. M. Smith. Pp. iii + 243 + 5t plates. (Madison, 

 A'is.) 



The Bahama Floras. Bv Prof. N. L. Britton and 

 "r. C. F. Millsnaui'h. Pp. viii + fKi^ C\< u York: 

 !''iblishe<l by the authors.) 



N". 2675, VOL. 106] 



Introduction to Qualitative Chemical .Analysis. By 

 Th. W. F'resenius. Seventeenth edition of the original 

 work by C. R. Fresenius. Translated by C. .Ains- 

 worth Mitchell. Pp. xx+954. (London : J. and A. 

 Churchill.) 36s. net. 



Department of Marine. Biology of the Carnegie 

 Institution of Washington. Vol. x. : The Echinoderm 

 Fauna of Torres Strait : Its Composition and its 

 Origin. By H. L. Clark. (Publication No. 214.) 

 Pp. viii + 223+38 plates. (Washington : Carnegie 

 Institution.) 



Diseases of the Ear. By Dr. P. D. Kerrison. 

 Second edition. Pp. xxi + 596-hvi plates. (Phila- 

 delphia and London : J. B. Lippincott Co.) 355. net. 



Chemie der Hefe und der .Alkoholischen Garung. 

 By Prof. H. Euler and Prof. P. Lindner. Pp. x+ 

 350+2 Tafel. (Leipzig: Gustav Fock.) 



Kieselsaure und Silicate. By H. Le Chatefter. 

 Berechtigte L'ebersetzung by Dr. H. Finkelstein. 

 Pp. xi + 458. (Leipzig : Gustav Fock.) 



Piezochcmie Kondensierter .Systeme. By Prof. E. 

 Cohen and Dr. W. Schut. Pp. ix+449. (Leipzig : 

 Gustav Fock.) 



Die Chemische Literatur und die Organisation der 

 Wissenschaft. By W. Ostwald. Pp. iv+120. 

 (L«'ipzig : Gustav Fock.) 



.A Dictionarv of .Applie<l Chemistry. By Sir Edward 

 Thorpe. Vol. i. : .A-Calcium. Revised and enlarged 

 edition. Pp. x + 752. (London : Longmans, Green 

 and Co.) 60s. net. 



.Ancient Egvpt. Part i., 1921. (London and New 

 York : Macmillan and Co. ; Boston : Egyptian Re- 

 search .Account.) 2S. 



A Manual of Photographic Technique : Describing 

 .Apparatus, Materials, and the Details of Procedure. 

 Bv L. J. Hibbert. Pp. x+ii8. (London: Sir I. 

 Pitman and Sons, Ltd.) 2S. 6d. net. 



Diary of Societies. 



TBURSDAY. FwnrABT 3. 



ROTAL IssTiTUTioM Or Okut BRITAIN, at 3.— Prof. W. A. Herdmui ; 

 Oceanography <Oreat Exploring Kxpt^ditiona). 



RoTAL BoriiTr. at 4.30.— Dr. a. B. Jcffery ; Tlio Field of an 

 F.ii'otron on Kinstein's Theory of Gravitation. — Ur. M. N. Saha : 

 .\ I'h.vsical Thcor.T of Stellar Spectra.— W. K. Darke. J. W. 

 McBai'n, and C. S. Salmon : The Ultra-microscopio Structure of 

 Soaps. — Dr. J. Meret'-r : Linear Transformations and Functions 

 of PositiTe Type. 



China Socitrr (at Sehool of Oriental Studies), at 5.— K. H. C. 

 Walsh : Central Tibet and Lhasa. 



LL-muN Socirrr, at 5.— Miller Christy: Wistman's Wood. Dart- 

 moor; Specimens of Slides. — Dr. Airnes Arber ; I.eaf-tips of 

 Monocotyledons.— T. A. Dymes : Seedlingr* of Ruteut aculeatut, 

 with Remarks on their Germination and Growth. 



ROTAL AlBONAtiTlCAL SOTirTT (at Royal Society of Arts), at 5.30.— 

 Major O. Dobson : The Use of Meteorolofry to Ariation and 

 F»c«-r»rs«.— Win»-Comdr. H. W. S. Ontram ; Oronnd F.nirineerlnir. 



RoTAi. Hocirrr or Mcdiciki. at 5.30.— Prof. F. Hobday : The Diseases 

 of Animals which are Contafrions to Man. 



I.oxiM)N DrBMATOLoou'Ai. SoTirTT. at fi.--l>r. W. Griffith : Parasttio 

 Diseases of the Skin (Chesterfteld I.eeture). 



CRmirAi SoonTr. at 8.— Informal Meetinic. 



Rorti. SoriitTT or Mrninift (Ohstetries and OynmeoloirT Section), 

 at 8. F. C. Pybus : An TnuHual Trpe of a Tubercnlons Perl- 

 tnbal Crst.— Dr. T. W. Kden and F. t,. Pm»is : X.rnr Treatment 

 of rterine Fibroids and Chronic Metritis. 



FRIDAY. ruBOAKT 4. 



RoTAi. HotiiTT or MrDiriir (LarynrnWr SeetinnI, at 4. 



RoTAt. AsTioNomcii Socirrr (Oeophrsical ni»cu«>(nn), at 6.— 

 On OrarItT at Sea : Openeil bv Prof. O. W. DiifReld. and con- 

 tinned by Sir S. O. Barrard. Dr. If. Jeffreys. Dr. J. W. Krans. 

 and Dr. A. M. DaTiei. Chairman : Sir Arfhnr Schnsfer. 



RfiTAi. Coiimr or Hrnoro-cn or F.onu'in. at .li.— Prof. C. W. O. 

 Brran : The F.arlr and Late Effects of Inluries of the DIaphrarm. 

 with Social Reference to Wounds jointly involrinir Thoracic and 

 Abdominal Viscera. 



IsraTiTi'TfOK or MrrwAiiirAi. F.NOTNima (Informal Mcetinv). at 7.— 

 ". R. Wade and Others : Oor Part in the Industrial Crisis of 

 To-day. 



Jritioa iNSTirrriov or R-cointitas. at 8.- W. R. Ballantyno : Sur- 

 face Tension, and Some of Its Indnstrial Applications. 



