3^4 



NATURE 



[November ii, 1920 



FRIDAT. NoTzimn It. 



iHmrinE or CataisTKi:, »t *.— Xo iltoem.- llcport of the Ertra- 

 ordiJiary General Al«:tin({ ol October ia nuu cuutirm tne lle»o- 

 lutionA and h>-Jaws pusti^vd tliereat. 



PsniCAt 8001ETT or I.ONuoN («t imperial College of Science), nt 6. 

 — Ur. V. 8. Gouchcr: iouiiution and J;:xcitatiuu of Uudiution bjr 

 Electron Impact iii Beliutn.— J. Guild: fringe Systems in Uu- 

 eompensntcd Interferometers —J. Guild: The Location of Inter- 

 ference i'rinffes.— Ur. G. JJorr: A New Melay for Moderately 

 H«aTjr Current*. 



ROVAI. .VsTitoNoMicAl SociETl, at 6.— HeT. J. G. Hagen: Diffennoes 

 between Long-period and Short-period Variablee.— J. H. Reynolds : 

 The Galactic Distribution of the large Spiral Nebulic.— W. S. 

 Franks : Mioromctrioal Measures of 202 Double Stars.— K. K. 

 Baxandall : The Presence of Absorption Lines of Nitrogen and 

 Oxygen in the Spectm of Ko»a AquiUe III.— J. van der Bilt : 

 Observations of Minor Planets made with the 10-in. Jlcfrnotor 



of the Univcmity Observatory, Utrecht, Holland VV. J. 8. 



Lockyir and D. L. Edwards ; Spectroscopic and Magnitude Gb- 

 •errations of Nova Cygni III., 1920.— <J. S. Uodwell : Note on 

 the Longitude of Adelaide.— J. Evershcd : Recent Work at 

 Kodaikunal Observatory. 



Boni SociBTr or MmiciWE (Clinical Section), at S.30.— Dr. F 

 Farkes Weber: Chronic Myeloid I.*ukiBmia— Death from Acute 

 V^v"^.! ," to. Massive Hremorrhages (Hsemntomata), Simulation 

 of Slight Pyuria by Leukiemio Oozing in the Urine.— Z. Oope: 

 Diaphragmatic Shoulder Pain. 



iNsTiriTioN or Jltcju.MCAL Encinhees, at 7.— Informal Meeting 



Junior Insiitction or Enoi.veebs (at Caxton Hall), at 8.— E. H 

 Indi'a"' '^•^■''''*"'"^ ^''"'i Packing and Colliery Workings in 



Roru. SociETT or Medicine (Ophthalmology Section), at 8 30!- 

 rp;.;i•,u„t^r'■^Ji'"*^^*?•'■''^°«^'™' -^^spcets of Ophthalmic Cases 

 Eye of the Ox "' "^^^ Blood-vessels In the 



HON DAY, NOTEMBEB 15. 



^^J".^'"'""'' SOCIETT, at 3.-Prof. A. W. Bickerton : The Kelati.ins 



°llatt7'"""^ Botany. (1) The Importance of Scientific Oor 



Kowi Geogeaphical Socmr (at Lowther Lodge), at 5._Prof H E 



Schwarz: The Control of Climate bv Lakes. 

 Institution or Electbical E.ioinebks (Informal Meeting) (at 



^'S^JrirZ H^arSLn'Ssh'.r^chTScts'?'-''- ^^ 

 • TUESDAY. NovEMBEB 16. 



RoiAt, HOBTICULTUBAI, SOCIETT, at 3. 



ROTAL COLONIAL INSTITUTE (at Hotel Victoria), at i.-G Howell- 

 Petroleum llesourcos of the British Empire aowell . 



°^otio^rT.i-^a' mJ-"'"\Z (''''V;r«I'™tics and Pharmacology 



Section), at 4.30.-Ma]or Acton : Pharmacological Actions of the 



l^in Cmohona Alkaloids, iUustrating their Isomeric Relation 



tic? n? W " f^-P'^°",^Q'">"n«. Derivatives as Local Anajsthe- 



ArtStis' n;» w ?'n!^ ^''T^'= Treatment of Rheumatoid 



ffc- i"„, K ■ ,■ S; ^J^™ *■"' ^- Cow : Pituitrin-like Body in 



anee thor^n'"'" '""^' ""'' Hormones which cause its appear 



RoiAl STATlSTlCAt, SociElx, at 6.15.-Sir R. Henry Row ■ The Or 



Iv!?m?oTo°/rrvTr"v'' (Inaugural Presidentia7Add;ess) ' °' 



I-VSTITLTION oi Civil, Engineebs, at S.30.-P. \V. Maoaulav • Cro^s 



S'^fa'trwoTk *^ ^""^ ^'"'^■^""* "' *>^^ Birmingha'm Oorpr 



^"Sir'at" ^,?0 P"",™"^™ Technolooists (at Royal Societv of 

 AJM), at ■■JO.— L. \V. Bates: Colloidal Fuel.— H. O'Neill- Pro- 

 perties and Characteristics of Colloidal Fuel "'"''»'• "" 



Zoological Societv of London, at ,'5 30— Dr P rl,«Imer= liiu„i,.n 

 Srth' o7 00? ,;^^^»^- *" *"« Society's Mena^e'r^e^d,? ;'^^' ,c 

 Africanlake, A^i;'^';- ^ ' J"' Cunnington : The Fauna of thi 



mT-mS. "'" *'^™""'"'' «■"' BM^ in the SocT.*"s Oarde"^ 

 "srh^itl°"BT "•■ ^''■"<'."'« 'Pathology Section), at fi.30.-Dr. H. 

 lega"*Bcar?n™''T5"';""J'V'**' ""-.« Material and its Medico: 

 H^\ir nr~A ^, '^,• *'.'"-™>'= Antoplasty after Exposure to 

 K^TelrT'?; o'the^:re",Ste*rii?"|T^i^*^ Organism persisting tor 



WEDNESDAY. Novembeh 17 

 j"Berrv'"I °P M™'"''^ (History of Medicine Section), at 5.- 

 ar^.J-I \, ■^„P?''''o Latr.ne of Roman Imperial Time.-lDr M 

 Greenwood: Galen as an Epidemiologist. 

 Geological SociEir or London at S 30 



''l^b.^nrp-rtrTr^e^s l^s^d^ ^- 1- 



' ' TBURSDAY. Notembbr 18. 



?fn'^»^nT*r'? ^*'"""; "t 3-rrof. A. W. Biekerton: The Rela- 

 oiples. '^'*'"'"""°y *° Botany. (2) The Value of Basic Prln- 



'"fhLS^t''-""' *t ^^-P'-.o^M'- P«Per,: sir Arthur Schuster- The 



TheTm «»,• n"'', Sc»tt*""*r of Light.-Prof. O. W. Richardson : 



lL T '^ n , ^'^"^tro"s "■«''•■• the Influence of Chemical Action. 



7 n r>' >•■ ZJ M»t.'nottsm and Atomic Structure. I.— Prof. 



A. o. Bankine: The Proximity of Atoms in Gaseous Molecules— 



NO. 2663, VOL. 106] 



Proi'. A. O. Raukine : The SimiJiirity between Carbon Dioxide and 

 Nitrous Oxide.— Dr. A. it. Williams: Forces in Surface FUns 

 Part I., Theoretical Considerations; Part II., Experimental Ob^ 

 Bervations and Calculations; Part Ul.. The Charge on CoUoids 



LlN.N>.AN socilTl, at 5.-Prof. E. S. Goodrich: A New Type of 

 Teleostean Cartilaginous Pectoral Girdle found in yooug 

 Clupyids.— Dr. J. C. Willis: Endemic Genera sod Hpooiea of 

 I'lantf. 



RovAL AKBONAUiiCAi, -SociETt (at Boy»l Society of Arts), at S — 

 L. Damblanc : The Problem of the Helicopter. 



RorAL SociETr or Medicine (Dermatology Section), at 5. 



iNSTiTiTjoK or JliNiKG AND Meialuibgv (at Geological Sooietv), 

 at .5.30.— J. .Morrow Campbell: The Origin of Primarv Ore De- 

 posits (Adjourned Discussion).— H. C. Hobson : Cmivcrting High- 

 grade Matte in Magnesite-lined Converters.— C. Braokenbury : An 

 Automatic Counting Machine for Checking Tram Wagons 



Institution or Electbical Ensineebs (at Institution of CiTil 

 Engineers), at 6.— LI. B. Atkinson: Inangnral Addr««. 



Institution or Aotomobile E.'iOi.'«E««s, at « London Oradaatet' 



Meeting. 



Chemical Socisir, at s. 



RiiNTGEN SociExr (in Physics Lecture Theatre, University College, 

 Gower Street), at 8.15. 



FRIDAY, NOVEMBEB 19. 

 ROTAL SOCIETV or MEDICINE (Otology Section), at 5.— Sir WilllMn 



MUhgan : Chronic Catarrhal Otitis Media ; Some Thoughts and 



Suggestions. 

 Institution or Mechanical Enginiebs, at 6.— Capt. J. S. Arthur- 



Sterilisation of Water by Chlorine Gas. 

 Institution of Electbical Enginefji.s (Students' Section) (at Oity 



and Guilds (Eng.) College, Exhibition Road), at 6..30.— C. C. 



Paterson : The Incandescent Electric Lamp from the Inside. 

 RorAL SociETT OF Medicini; (Elcotro-Therapeutics Sections), st 



8.30.— Discussion : Radio-thcrapv ; Prof. S. Huss : Phvsies.— Dr. 



Batten : Bnperfloial Therapy.- Dr. Finii : Deep Therapy. 



SATURDAY, Novembee 20. 

 Phtsioiooical Socictt (at St. Bartholomew's Hospital), at i. 



CONTENTS. 



Superannuation of University Teachers 



Biology of Endogamy and Exogamy 



Einstein's Exposition of Relativity . 



The Cambridge British Flora. By A. B. R. . . . .' 

 Man and Matter. By the Rev. S. A. McDowali . . 



Our Bookshelf 



Letters to the Editor: — 



Restoration of Energy. — Sir Oliver Lodge, F.R. S. 

 British L.iboritory and Scientific Glassware. — Dr. 



M. W. Travers, F.R.S 



Negative Electron Curve. {IFiiA Diagram.)— S. G. 

 Brown, F.R.S. ..... 



Chemical Warfare and Scientific Worker.s. — Prof. 



A. E. Boycott, F.R.S 



Testing Einstein's Shift of Spectral Lines. — Dr. 



Charles Chree, F.R.S 



Contractile Vacuoles. — Prof. Henry H. Dixon, 



F.R.S 



Visibility of the Landscape during Rain. {(ViiA 



Diagram.) — T. W. Preston 



Museums in Education. — E. W. Shann .... 

 Maling Dances of Spiders. — G. H. Locket .... 

 The Energy of Cyclones. — R. M. Deeley ; Lt.-Col. 



E. Gold, F.R.S 



Luminosity by Attrition. — C. Carus-'Wilson . . . 



Industrial Research Associations. I. British 



Scientific Instiument Research Association. Bv 



J. W. Williamson . '. 



Microseisms. (IVith Diagrams.) ByJ. J. Sbaw . . 

 The Tercentenary of Jean Picard. By Dr. J. L. E. 



Dreyer . 



Robin's Water-music. By Prof. W. Garstang . . 



Notes 



Our Astronomical Column : — 



The Distribution of the Stars in Space 



The Multiple System | Ursse Majoris 



Charlier's Critical Surface in Orbit Determination . , 



Physics at the British Association 



Chemistry at the British Association .... 



The Lakher Head-huriters of Upper Burma . . . . 



Meteors of the Season 



Heredity and Social Fitness 



University and Educational Intelligence 



Societies and Academies 



Books Received 



Diary of Societies 



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