304 



NATURE 



[April 27, 191 1 



by the electric «pork. Th»- »'t?«t»«m-* of n necond line 

 •pectrum of air hn* b. . ' .1 .xrluslvely by 



the osdIlntionM of «li Pascal : Re- 



•enrrhrs on thi- nm({n<iM ,.1..,,.,.,., <.. ,, mi-. A detailed 



•tudy of thi' inajjmfic HUHt-rpfibiliJv of fliiorlicnrone and 

 parnflijorplnnctol.- A. Tlan : Ih*' (leromiMisition of water 

 by ultraviolrt liRht. I'ndpr th«- action of the radiations 

 from a quartz merrury vapour lamp, water in d«-composcd 

 into hydroj^en and hydrofrcn prroxidf, the- latter, decom- 

 posinfj in it<» turn, (giving rise to oxygen. After a sufficient 

 lapse of time for flio otiuilibrium to bf established, the 

 efTfCt of the ultraviojit lifjht in idmtiraJ, so far as the jjases 

 evolved are concernfil. with olcTtrolysis. — K. Pl«ur*nt and 

 Lucien L4vi : The estimation of phosphorus in milk. 

 Remarks on a recent pap«'r of Bordas and Touplain. — 

 H. ilumall* and II. iF«rri*r d* l« Bathie : The leafloss 

 Asclcpiads of th<' wrst of Mndafjascar. — Lurien Daniel : 

 Biomrtriral study of fho descent of jjraftod and non-prafted 

 beans. — J. Qranlar and L. Boule : The- hoterogamic 

 character of the ^vw/mi in Impalirns glanduligcra. — M. 

 Tmschal : Contribution to the studv of the sense of direc- 

 tion in the blind. A study of what has been termed the 

 " sixth sense " in the blind leads to the conclusion that 

 this is really of an auditive nature. — Armand Juillet : 

 Relations between the air sacs and the bronchia in birds. — 

 Jules Courmont and A. Rochaik : The antitoxic im- 

 mupisati<»ii bv intestinal antityphoid vaccination. Intes- 

 tinal vaccination produces immunity against typhoid toxins 

 and the serum of the vaccinated subjects is antitoxic. — 

 M. Schatler : A new arran|^ement for photoj^raphinj* 

 lesions of the skin or mucous membranes, jjivinfj configura- 

 tion and tlu' v:Uue of the morbid colorations. — M. Wein- 

 l>«rar and A. Julian : An example of an acquired immunity 

 towards a verminous toxin. — P. A. Dannceard. The con- 

 juj!;at?on of the ciliated Infusoria. — Ph. NAgrri*. The dis- 

 tinctive characters of the breccia arisinj< from the erosion 

 of transported breccia in the Peloponnesus. — J. Thoulet : 

 A. bathy-lithologic chart of the gulf between T^t and 

 Gruissan. 



■ ■■.:■■'■.. ,1 .: . ■ . ■ .1 -../■■ ,. . . ■ ..; , .:•> :_!__ 



DIARY or SOCIEl'IES. 



THURSDAY. April 27. 

 Royal Society of Arts, at 4.30.— The Trend of Mineral Development 



in India: Sir Thomas Henry Holland, K.C.I. E., F.R.S. 

 Royal Institution, at 3.— The Optical Properties of Metallic Vapours : 



Prof. R. W. Wood. 

 Mathematical Society, at 5.30.— A Symmetrical Method of Apolarly 

 Generating Cubic Curves : W. t". MHne.— The Solution of the Homo- 

 geneous Linear DifTerence Equation of the Second Order (Second Paper) : 

 G. N. Watson.— A Cartesian Theory of Com n lex Geometrical Elements 

 of Space : G. B. Mathews. — The Number of Primes of given Linear 

 Form : Lieut. -Col. A. Cunningham. — On the Proofs of the Properties of 

 Riemann's Surfaces discovered by Luroth and Clebsch : Prof. M. T. M. 

 Hill. — On Properties of certain Linear Homogeneous Substitutions : 

 H. Hilton. 

 Institution op Ei.kctrical Engineers, at 8.— Battery Economics and 



Battery Discharge Arrangements: A. M. Taylor. 

 Royal Gkockafhical Society (Research Meeting), at 5.— Recent Pro- 

 gress in Geodesy : A. R. Hinks. 



FRIDA y, April a8. 

 Royal Institution, at 9 —The Revolutions of Civilisaiion : Prof. W. M. 



Flinders Petrie, F.R.S. 

 Physical Society, at 5.— High-tension Elecu-ostattc Wattmeters : Prof. 

 Ernest Wilson. — Previous Magnetic History as AflTected by Temperature : 

 Prof Ernest Wilson and L. C. Budd.— Vote on the Behaviour of 

 Incandescent I>ime Kathodes : Dr. R. S. Willows and T. Picton.— On 

 the Formation of Dust Striaiions by an Electric Spark: Dr. S. Marsh 

 and W. H. Nottace. 

 Institution of Mechanical Engineers, at 8.— Gas-producers : J. 

 Emerson Dowson.— The Effect of Varying Proportions of Air and Steam 

 on a Gas-producer : E. A. Allcut. 

 Institution of Civil Engineers, at 8.— The Commercial and Technical 

 Relations of Engineering Design and Work : T. Frame Thomson. 

 MONDAY, May i. 

 Royal Society of Arts, at 8.— Rock Crystal : its Structure and Uses : 



Dr. A. E. H. Tutton, F.R.S. 

 Society of Engineers, at 7.30.— The Protection of Water Supplies : 



H. C. H. Shenton. 

 Aristotelian Society, at 8.— A New Law of Identity : Miss Constance 



Jones. 

 Society of Chemical Industry, at 8.— The Testing of Creosote: C. 

 Edward Sage.— A Modification of Raschig's Theory of the Lead Chamber 

 Process: E. Divers, F.R.S. 

 Institute of Actuaries, at 5.— Notes on the Insurance Act 1910, 



Dominion of Canada : T. Bradshaw. 

 _ TUESDAY, May 2. 



'^^y'**'. Institution at 3.— The Decay of Idealism in France and of 



Tradition in England : J. E. C Bodley. 

 Faraiiav Society, at 8.— Hydro-electric Plants in Norway and their 

 .•\Milication to Electrochemical Industry : A. Scott-Hansen (Christiania). 

 — tlectro-metallurgy in the Sieel Foundry : Verdon Cutts.— Two Simple 

 forms of Gas-pressure Regulators : Edgar Stansfield. 



WEDNESDAY, Mat > 



R <^ "•" "f Arrs, at • '" "— nenu in the Tran«|>ort ami 



.<U in \/anA , til*. 



) cikty. at liom and a few Anttralian 



.•\.....^».- ii,M.....,j.ieni in the o. ..:„»eiwi: the late Cot C 'I 



BinKham. 

 Stxnrrv or Public Awalvst*. at •.— "nw RvaHMtioa of oeitaia S|" 



tt««d in Medicine: J. C. Umncy ar ' ' f>nn««.— Abforption 



DtMolvwd Oxygen hiy Sewage KfH. •■ Rojral 



ProvislrmnI Sianrl.ird ■ F. HnMiwel! 



le on Itie 



.liM" of 

 vpltyUin. 



I Note on lt> 

 !^— AReacii.. 



—J. V. If, (.ilbard. 



THURSDAY, May 4. 



Royal Socimr, at i.yi.—Pro6a/!f ra/>eri : Some Ptienomcoaof IU(«nera- 

 tion in Sycon, with a Note ' 'illar-c«U»: J "^ 



Huxley. --Cancerous Anceinr^ 'next in Mi' •- 



Dr. J. A. Murray, M.t.r I : ;,e GibHon col- 



lated with I ' . : Dr. F. W. Mutt. F.R.S., Dr. 1 



Schuster, a . F R.S.— Immunitatioa by nieai 



of Bacterial I Hewlett. 



Royal Instiiuwun, at > - Tlic Optical Properties of Metallic Vapour- 

 Prof. R. W. Wood. 



LiNNRAN SociET^ at 8.— On Tolin Van;;li:in llion.i.viri an^t ?in Pohntoa. 

 and on Vaunt Wmpsoni.i Meboing, 



F.R S.— On Polytrema .: ' Hidtioo, 



F.R.S.— Ob<,erva'ion« 01. Khiiopod*: 



J. M. Brown.— The Britisii .Museum CollcctMan uf IJUllni^ eacloMd in 

 Aml>er: R. Shclford.— Freshwater Algjc collected in the South Orkneys 

 by Mr. R. N. R. Brown: Dr. F. E, »^rii»ch. 



ROntcen Society, at 8.15.- The Use of Radium in Malienant Gfotnba: 

 C. W. Mansell Moullin.— Rapid Radiography : Ed. S- WorralL 



FRIDAY, May 5. 

 RovAL Institution, at 9. — New Organic Compounds of Nitre; 

 M. O. Forster, F.R.S. 



CONTENTS. .nwr, 



A New Catalogue of British Birds 271 



The Conservation of Soil Wealth. By A. D. H. . 272 



The Termites of Ceylon .... 273 



Orientation in Organic Chemistry. By J. B. C. . . 274 



A Philosophical Evolutionist. ByJ. A. T 275 



Recent Progress of Science 275 



Disjunctive Geography. By B. C. W 276 



Our Book Shelf 2^6 



Letters to the Editor: — 



Dayli{:;ht Saving?— L. Southerns; Prof. J. Milne, 



F.R.S. 278 



Seiches in Windermere. (Illustrated.) — Gordon 



Dobson 278 



The Flight of Exoccetus.— Cyril Crossland .... 279 



The Stinging Tree of Formosa. — H H. Haines . 280 

 Fundamental Notions in Vector Analysis. — Prof. 



Maumatha nath Ray ; C. G. K 280 



An Abnormal Zebra.— R. Lydekker, F.R.S. . . . 281 



.\ Robin and his Young.— Charlie Woods .... 281 

 Proposals for the Reform of the Calendar. By 



H. C. P 281 



The Unveiling of Nubia. {Illustrated.) By Prof. G. 



Elliot Smith, F.R.S 283 



Germany and the Protection of Nature. By A. E. 



Crawley ... . 2S6 



Thomas Rupert Jones, F.R.S. By H. B. W. . . . 287 



Notes ^S7 



Our Astronomical Column : — 



Astronomical Occurrences for May 292 



Cornels as merely Optical Phenomena 292 



The " Astronomischen Jahresberichts " 292 



The Intrinsic Light and Effective Temperatures of 



Algol and its Satellite 292 



Halley's Comet 292 



Observations of Jupiter 292 



Geological Work in British Lands. H. — In Aus- 

 tralasia. {Illustrated.) By G. A. J. C 292 



The Pharmaceutical Society's Seventieth Anni- 

 versary . . 294 



American Hydrology (Illustrated.) By B. C. . . 295 



School Medical Service 296 



Optically Active Phosphorus-compounds 297 



Meteoiological Reports and Summaries 297 



Museum Conference at Halifax 298 



Some Recent Fish Literature. By R. L 298 



Technical Training and the Optical Industry . . 299 



University and Educational Intelligence 302 



Societies and Academies 3^2 



Diary of Societies 304 



NO. 2165, VOL. 86] 



