396 



.NATURE 



[November i8, 1920 



Diary of Societies. 



•I'UVRSDXY. NovEMBEB 18. 



UoTAf. Botanic sociKTr, at 3.— I'rof. A. W. liickerton : The Rela- 

 tions ni Astronomy to Botany. (2) The \ alue of Basic I'rln- 

 cipK's. 



Howl. .soLlCTi, at 4.30.— Sir Arthur Sohusti-r : Tho AliMirption aud 

 Scattering of Light.— I'rof. O. \S . llichardisoii : The hmissioii of 

 KlcGtrons under the Influence of Chemical Action. — Ur. K. K. 

 U-vlt-y : Magnetism and Atomic Structure. 1. — Prof. A. O. 

 llanl^ine : The I'roximity of Atoms in Gaseous Molecules.— 

 I'rof. A. (). Ilanliiuu : The Similarity between Carbon Dioxide and 

 Nitrous Oxide.— Dr. A. M. Williams: Forces in Surface Films. 

 Part I., Tfaeoretioal Considerations ; Part II., Experimental Ob- 

 servations and Caiouiations ; Part 111., The Charge on Colloids. 



Ijl.N'NEAN Society, at j. — Prof. K. S. Goodrich : A New Type of 

 Teleostean Cartilaginous Pectoral Girdle found in young 

 Clupeids.— Dr. J. C. Willis : Endemic Genera and Species of 

 Plants. 



UoiAL .\KHoXAUTlCAL SocjEir (at Royal Society of Arts), at 5. — 

 L. Damhlano : The Problem of the Helicopter. 



RorAL SociETr of Medicine (Dermatology Section), at Ti. 



^^'STITUTION or Mining and Metallukgy (at Geological Society), 

 at .5.30. — J. ]\!orrow Campbell : The Origin of Primary Ore De- 

 posits (Adjourned Discussion). — H. C. Robson : Converting High- 

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

 Automatio Counting Machine for Cheeking Tram Wagons. 



Child-Studx Societi (at Royal Sanitary Institute), at 6. — Dr. 

 Y. G. Crookshank : The Anthropological Study of the Keeble- 

 . minded, or Imbeciles and Apes. 



Institution of Ki.ectkical Engineers (at Institution of CiTll 

 Engineers), at 6. — LI. B. Atkinson; Inaugural Address. 



Institi'Tion of AliTOMOBlLE ENGINEERS, at 8. — London Graduates' 

 Meeting. 



Chejiicai. Society, at 8. 



WmttESS .SOCIETY (at Royal Society of Arts), at 8.— A. .\. Camp- 

 bell Swinton : Address. 



RoNTGEN Society (in Physics Lecture Theatre. University College, 

 Gower Street), at 8.15.- Dr. E. Knox: Presidential Address. 



FRIDAY, Novembeb 19. 



Royal Society of Medicine (Otology Section), at 5.— Sir William 



Milligan ; Chronic Catarrhal Otitis Media ; Some Thoughts and 



Suggestions. 

 Institution op Mechanical Engineebs, at 6. — Capt. J. S. Arthur : 



Sterilisation of Water by Chlorine Gas. 

 Institution of Electrical Engineers (Students' Section) (at City 



and Guilds (Eng.) College, Exhibition Road), at 6.30.- C. O. 



PaterSon : The Incandescent Electric Lamp from the Inside. 

 Junior Institution of Engineers, at 7.— G. H. Ayrcs and Others : 



Discussion on Economical Transmission of Power. 

 Royal Society of Mebicine (Kleotro-Tlierapentics Sections), at 



8.30. — Discussion : Radio-therapy ; Prof. S. Russ : Physics. — Dr. 



Batten : Superficial Therapy.— Dr. Finzi : Deep Therapy. 



SATVRDAT, November 20. 

 Physiological Society (at St. Bartholomew's Hospital), at 4. 



MONDAY, Novembeb 22. 



Royal Society of Medicine (Odontology Section), at 8. 



Royal Geographical Society (at iEolian Hall), at 8.30.— Major 

 F. M. Bailey; A Visit to Bokhara in 1919. 



Medical Society of London (at 11 Chandos Street, W.l), at 8.30.— 

 Dr. F. J. Poynton, Dr. D. H. Paterson, and Dr. J. C. Spenee : 

 X Study of an Outbreak of Acute Rheumatism in Children under 

 12 Tears.— Dr. G. E. 8. Ward ; Some Disorders of the Mvo- 

 cardium (illustrated by the electro-cardiograph). 



TUESDAY, November 23. 



Royal Botanic Society, at 3.— Prof. A. W. Bickerton : The Rela- 

 tions of Astronomy to Botany. (3) Complex Changes of Season 

 and Climate. 



Sociological Society (at 65 Belgrnve Road), at 5.15.— C. E. Enock : 

 Suggestions towards a Science of Corporate Life. 



Royal Society of Medicine (Medicine Section), at 5.30. 



Institution of Petroleum Technologists (at Royal Society of 

 -\-rts), at 5.30.— Short Chemical Pai>crs. 



Royal PHOTOGRArHlc Society of Great Britain (Technical Meet- 

 ing), at 7.— W. T. Wilkinson : The Wet Collodion Process De- 

 monstrated, and nn Incursion into Lifto-Photography. 



Royal Anthropological Institute (at Royal Society).' at 8.30.— 

 Dr. A. C. Haddon ; Migrations of Cultures in British New 

 Guinea. (Huxley Memorial Lecture.) 



WEDNESDAY, November 24. 



Institution of Electrical Engineers (Wireless Section) (at In- 

 stitution of Civil Engineers),, at 6. — Dr. W. H. Eccles : Address. 



Royal Society of Arts, at 8.— Dr. F. W. Edridge-Green : Colour 

 Vision and Colour Blindness. 



Institute of Chemistry (in Chemical Theatre, Tniversity College, 

 Gower Street), at 8. — J. Turney Wood ; Some Scientific Aspects 

 of Tanning. 



THURSDAY, Novembeb 25. 



Royal Society, at 4.— Special Gi-neral Meeting to consider the 

 -Annual Report of CounciL — At 4.30. — Prohable Paperff. — Prof. L. 

 Hill : the Growth of Seedlings in Wind.— Prof. P. T. Herring : 

 The' Effect of Thyroid-fi^eding and of Thyro-pnrathyroidectomv 

 upon the Pituitrin'Content of the Posterior Lobe of the Pituitary, 



the Cerebro-spinal Fluid, and Blood. — W. A. Jolly : Keflex Timet 

 in the South African Clawed Frog.— Prof. J. A. Ounn and K. 

 St. A. Heathcote : Cellular Immunity. Observations on Natural 

 and Acquired Immunity to Cobra Venom. — L. T. Hogbcn ; Studies 

 on bynapsis. ill. The Nuclear Organisation of the Oerm Colls 

 in LibMula depreua. 



Chadwick Public Lectures (at the ^ledioal Society of lyondon), 

 at 5.15. — Prof. J. B. Farmer : Some Biological Aspects of Disease. 



Institution of Electrical Engineebs (at Institution of Civil 

 Engineers), at 6.--W. B. Woodhouse : The Distribution of Elec- 

 tricity. — 11. O. Kapp ; Some Economic Aspecte of E.H.T. Dis- 

 tribution by Underground Cables. 



Egypt Exploration Society (at Royal Society), at 8.30.— Prof. O. 

 Elliot Smith ; The Royal Mummies. 



Royal Society or Medicine (Urology Section), lit 8.30. 



FRID.IY, NOTEMBER 28. 



Royal Society of Medicine (Study of Disease in Children Sec- 

 tion), at 5. 



Institution of Electrical Engineers (Students' Section) (at the 

 City and Guilds Technical College, Leonard Street, E.G.), at 

 ().36.— .i. J. 0. Watts : Electricity and the Paper-making In- 

 dustry. 



Optical Society and Physical Society of London (at Imperial 

 College of Science and Technology), at 7. — The Making of Re- 

 flecting Surfaces, (o) Technical "Mothods and Process. (6) Pro- 

 perties of Reflecting Surfaces (Reflecting Powers, etc.). 



Royal Society of Medicine (Epidemiology and State Medicine 

 .Section), at 8.30,— Dr. X. Chaplin: Measures for Preserving the 

 Health of Seamen on Board Ship. 



CONTENTS. PAGE 



Science and the Cenotaph 365 



The Newer Spiritualism 367 



Boltzmann's Lectures. Ry S. C. . 368 



The Surveyor's Art. Bv E. H. H. 369 



Ronald Poulton. By Dr. R. R. Marett 369 



Our Bookshelf 37° 



Letters to the Editor: — 



Einstein's Shift of Spectral Lines.— Sir Oliver 



Lodge, F.R.S 373 



The British Association— Dr. John W. Evans, 



F. R.S., Dr. H. Lyster Jameson, and Major 



A. G. Church ; Dr. N Annandale ..... 373 



Chemical Warfare and Scientific Workers. — Prof. 



Alex. McKenzie, F.R.S. ; Dr. Norman R. 



Campbell . . 374 



British Laboritory and Scientific Glassware. — E. A. 



Goad Pryor . . . 374 



The Separation of the Element Chlorine into Normal 

 Chlorine and Meta-Chlorine, and the Positive 



Electron.— Dr. F. W. Aston 375 



The Stereoscopic Appearance of Certain Pictures. — 



Dr. F. W. Edridge-Green, C.B.E 375 



The Energy of Cyclones.— W. H. Dines, F.R.S. 375 

 Physiological Method as a Key to the Causation of 

 Isle of Wight Disease in Bees.— Dr. James M. 



McQueen 37^ 



Luminosity by Attrition.— Edward Heron-Allen, 



F.R.S. ; Dr. H. S. Allen 376 



Contractile Vacuoles.— Prof. W. M. Bayliss, 



F.R.S 376 



The Mechanics of Solidity.— J. Innes . . ■ . .377 

 The Protection of Animal and Bird Life in Australia. 



— W. L. Summers 377 



New British Oligochicta — Rev. Hilderic Friend 377 

 Microscopy with Ultra-violet Light. (Illustrated.) 



By J. E. Barnard .378 



Industrial Research Associations. II. British 

 Non-ferrous Metals Research Association. By 



Ernest A. Smith 3^1 



Notes 3^i 



Our Astronomical Column : — 



The Eclipse of 1922 in Australia 387 



Jupiter's Satellites ^87 



The Origin of Spectra 387 



The Bulawayo Meeting of the South African 



Association. By H. B. F 388 



Geography at the British Association 389 



National Union of Scientific Workers 391 



University College of Swansea 391 



University and Educational Intelligence 392 



Societies and Academies 39^ 



Books Received 395 



Diary of Societies 396 



NO. 2664, VOL. 106] 



