4o6 



NA'lURt 



[May i8, 191 i 



III. 1.1 \ 



ir, ]:'-■ 



Bouyn 



contiii' I 



ini\Iiii 



.ic of insulation of an allernating network ' 

 vohint'ters intt.TrK>8ed between a fwie and 

 .. qii'-s OmcI«ux • Th" app!icati<>" <if i!n- \^\\. 

 - the sliiii' ph<:nonj< ! 



do Coninck : iiiination 



.u ol lljUrO. 1a 



lolecular wfight of 



• 1 from the atoiuii; 



Honriot aiul M. 



niipu 



Aronu' 



elcni' 



copp' 



I 



i>Il (II 111'' |>1 (i(HM I mil \>i I'M 



of different forms of snip 

 !i.' inincral romno>ition of til' 



i-h, includinji 



ai ' 



!1 111' 



Pougrnet : 



Mi'.'-n ixkIs 

 ur of \ani 



Tlv 

 of V 



a in 



■nil , 

 action 

 aniila. 



fi-' Ml 



I.uiien 



poii'- ; nianu;.ni'-Sf sail 

 Daniel ; V'\' >ni'i tiral i 

 betwfon til'' p'ar and i.|uinri' '.: '. . , 



valion, no llow rs liav li'in protlui .'d on i'' 

 studv of ill.' Ifaf d''nlili<in -hi.w- ;!i.- intlu' ;■ 

 til' suLi-Tt on th'^ "^ Mario un 



MacAulifTo : TIi'' li.'i^' of 



J''i'nrh woni'^n.-M-M. Landstcinor, Lcvaditi, and 

 Prasek : Att.Miipts t.. iran'-niii sr.-nlatina to thf rhiin- 

 pAii/ee. — C. Vancy and (i. Tainturier : 'I'l. '1. •■.■n.T- 

 escpnce of somo l.-u'val forms of Uypodcrviii ' arl 



8t5rmer : Tho r^'sults of photogrammotrir ; nts 



of the altitudf of the aurora borealis at Bc>s. icp .Uniiii^ 

 February and March, 19 lo. 



Melbourne. 

 Royal Society of Victoria, March q.— Prof. E. W. Skeats, 

 in the chair. — J. Mann : Papuan timbers, some of the 

 properties of six species. These, known as Ulabo, 

 Tamanau, Alaga, Madave, Kokoilo, and llimo, are now 

 being exported. Mechanical tests for strength, and for 

 calorific value, charcoal, and ash were made, and the 

 results are tabulated. Ulabo, which is a dark h.\avv wood, 

 is of engineering value and white-ant proof, while the 

 others are useful for general joinery and, being well 

 coloured and figured, for cabinet work. 



D^ARY OF SOCIETIES. 



THURSDAY. Mav 18. 



RovAL Society, at 4.30. — The Propetties of Colloidal Systems. II. On 

 Adsorption as Preliminary to Chemical Reaction : Prof. W. M. Bayliss, 

 K. R.S. — Inbreeding in a Simple Mende'ian Stable Poniilation, with 

 Special Reference to Cousin Marriage: S. ^' ' — ' ^- the Direct 

 Guaiacum Reaction (?iven by Plant Ext: A'heldale. — 



Transmission of Amakebe by means nf K -.diculntus, 



the Brown Tick : Dr. A. Theiler. — On Distrn.unon ami .v. mm of Soluble 

 Substances in Frogs deprived of their Circulatory Apparatus : S. J. 

 Meltzer. — The Discrimination of Colour: Dr. F. W. Edridge-Green. 



Royal Institution, at 3. — Air and the Flying Machine. I. The Struc- 

 ture of the Atmosphere and the Texture of Air Currents : Dr. W. N. 

 Shaw, F.R.S. 



Royal Geographical Society, at 5. — Research Meeting. Principles of 

 the Construction of Vegetation Maps : Dr. C. E. Moss. 



Institution op Electrical Engineers, at 8. — Automatic Telephone 

 Exchange Systems : W. Aitken. 



FRIDAY, May 19. 

 Royal Institution, at 9. — Recent Experiments with Invisible Light: 



Prof. R. W. Wood. 



SATURDAY, May so. 

 Royal Institution, at 3.— Phases of Bird Life. I. Flight : W. P. 



Pycraft. 



MONDAY, May m. 

 Royal Geographical Society, at 3.— Anniversary Meeting. 

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



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



TUESDAY, May 23. 

 Royal Institution, at 3.— The Brain and ihe Hand : Prof. F. W. Mott, 



F.R.S. 

 RoYAL_ Anthropological Institute, at 8.15.— The Classification of the 



Prehistoric Remains of Eastern Essex : S. Hazzledine Warren.— On a 



Prehistoric Skeleton from Walton-on-Naze : Dr. A. Keith. 

 Z<x>LOGiCAL Society, at 8.30. 

 Faraday Society, at 8.— Recent Advances in Gas Thermometr>- : Dr. 



A. L. Day. — The High Temperature Equipment at the National Phy-sical 



Laboratory: Dr. J. A. Harker, F.R.S.— The Boiling Points of Metals: 



: ai Miith TcnpwaUue* : 

 ! igb T«m|wnUttf«a : ProC 



^ M. 



Antigua and oUmt Wr i 

 Huiory of tbe Caribcan 



I , ' -^- ood.— Th« Behario' 



'.I the Maintenance ' 



' In Stellar l^omtu; 



HTEDNRSI 



•KAJ* Socimr, at 3.— Annivwn;.' 



M, Snnirrv e,r A«t<;, at S.~ 



.;.py. 



, at &— The Composittoo of Milk : H. Droop 



XiiitlyMt of Margarine: Cecil H. Cribb and 



\ <n% on »om« Methods of EuiwatiiHC 



ler aod MargariiM: Cecil RevU and 



ition of Qointne a* (he A<i'! Citrate, 



1 Cockburn and J. W. I Ueter- 



f DiiM>lved Oxygen a! *»«• 



an'! '.f the Amount of '■ -<^w»Ke 



>:rtber Anaiyacs uf Ghcc: Cecil 



. .■- - .: J , .'.Iav 95. 



VAL StKlfcTV, at 4. -yo. — I'robabie l'a^r$ : ExpehinCOtSOnihe CoO»prt<.iion 

 • Liquids at High Pressures: Hon. C A. PanoiM, F.R.S.. and .S. S. 



.1 _\.. ri,.,;,^,! M..,i„.,i ,,f \i..-,.„r,ng Vapour Pr«acar»> - V:.'. :r 



Solid Brcwaine ; <'. ' 

 lube Spectra of .^! 



! . ,,,<\r- W.'.iiltTX^ U , 



Whiddington. 

 Royal Institution, at 3.— Air an ; 



' ^ ''■■•■•'"''■ titers and Fliers : I'. •■ 

 ■K .Arts, at 4.30. — N \S : 



SATURDAY 

 -riTUTiON, at 3.— Phase 



.'M I'.ii.i I LiAN Society (at Oxford n. . ji.jui.niui. .01. . ..■>..■ 

 — A Symposium on the Relation of Psychology to Metap' 

 Stout and A. Smith. 



Conditioo» 



■4 

 5 

 375 

 376 

 377 

 378 



5>o 

 3^' 

 3S1 



38' 

 3S2 



383 



CONTENTS. PAGE 



The North Pole 373 



Energy and the Organism. Uy Sir T. Clifford 



Allbutt, K.C.B., F.R.S 



Alchemy, Ancient and Modern 



Theories of the iEther. By T. H. H 



Diseases of Economic Plants. By E. S. S. 



Elementary Mathematics 



Our Book Shelf 



Letters to the Editor:— 



The Thomson and Peltier Effects. ( With Diap-am.) 



— F. W. Jordan Z'^o 



Compulsory Latin Diagnoses for Fossil Plants. — E. A. 



Newell Arber 



SpiltingCobras.—T. R. H. Garrett 



The Reform of the Calendar.— W. T. Lynn . . 



The Rusting of Iron.— Dr. Wyndham R. Dunstan, 



F.R.S 



Science and the Imperial Conference 



Natural History of the Bible. By R. L 



Mediterranean Civilisation and the Phaestos Riddle. 



{Illustrated.) By Rev. John Griffith 385 



Mihtary Aviation at Hendon. By Major B. Baden- 

 Powell 387 



Sport and Travel in Central Asia. [Illttstrated) . . 38S 



Notes 3-^^ 



Our Astronomical Column : — 



The Bright Meteoi of April 30 .393 



The Spectrum of Nova Lacertct- 393 



The Radial Velocity of o Cygni 393 



The Distribution of Variable Stars ■394 



The Variation of S Arx 394 



The " Annuaire Astronomique" for 1912 394 



The Royal Society Conversazione 394 



The Iron and Steel Institute 397 



The International Philosophical Congress at 



Bologna 399 



Research at the National Physical Laboratory. By 



H. C. H. C 400 



Specialisation in University Education . 401 



University and Educational Intelligence 403 



Societies and Academies 4^4 



Diary of Societies 4^6 



NO. 2168, VOL. 86] 



