232 



NATURE 



[October 14, 1920 



The Case against the Lloyd Gcorj,'e Coalition. By 

 H. Storey. Pp. v+103. (London: G. Allen and 

 Unwin, Ltd.) is. net. 



Historical Geography of Britain and the British 

 Empire. (In two book's.) By T. Franklin. Book ii., 

 The Expansion and Consolidation of the British 

 Empire, a.d. 1800 to Present Dav. Pp. viii+152. 

 (Edinburgh : W. and A. K. Johnston, Ltd. ; London : 

 Macmillan and Co., Ltd.) 24-. net. 



Primitive Time-Reckoning. Bv Prof. M. P. Nilsson. 

 Pp. xiii + 384. (Lund: C. VV. K. Gleerup; London: 

 O.xford Lniversity Press.) 2 is. net. 



The Life of Ronald Poulton. Bv his Father, 

 Edward B. Poulton. Pp. xiH-4io. (London : Sidg- 

 wick and Jackson, Ltd.) 165. net. 



Phenomena of Materialisation. Bv Baron von 

 Schrenck Notzing. Translated by Dr. E. E. Fournier 

 d'Albe. Pp. xii + 340. (London: Kegan Paul and 

 Co., Ltd.) 35s. net. 



Memoirs and Proceedings of the Manchester 

 Literary and Philosophical Society. Vol. Ixiii. 

 (1918-19). (Manchester.) 12s. 



The Cambridge Pocket Diary, 1920-21. Pp. xv-l- 

 269. (Cambridge : .^t the University Press.) 3.?. net. 



The Elements of Plane Geometry. Bv Dr. C 

 Davison. Pp. viii-l-280. With Answers. (Cam- 

 bridge : Kt the University Press.) \as. net. 



The Principles of the Phase Theory : Heterogeneous 

 Equilibria between Salts and their Aaueous Solutions 

 By Dr. D. A. Clibbens. Pp. xx+383. (London : 

 Macmillan and Co., Ltd.) 25,?. net. 



The Psychology of Childhood. Bv Dr. N. Nors- 

 worthy and Dr. M. T. Whitley. Pp.'xix-t-37.^. (New 

 York : The Macmillan Co. ; I.ondon : Macmillan and 

 Co., Ltd.) lo.'c. net. 



Educational Psychology. By Dr. D. Starch. Pp. 

 xi+47.1- (New York : The Macmillan Co. ; London : 

 Macmillan and Co., Ltd.) 14.S. net. 



Practical Chemistry : Fundamental Facts and 

 -Applications to Modern Life. Bv \. H. Black and 

 Dr. J. B. Conant. Pp. xi+^4.' (New York : The 

 Macmillan Co.; London: Macmillan and Co., Ltd) 

 i\s. net. 



.\ Study in Reali.sm. Rv Prof. J. Laird. Pp. xii + 

 228. (Cambridge : .\t the University Press.) w^ 

 net. ^ 



.■\n Outline of Physics. Bv L. Southerns. Pp. 

 xv-l-202. (London : Methuen and Co., Ltd.) 6.1. 6d. 



Papers Set in the Mechanical Sciences Trioos. 1912, 

 I9I3. 1014. 191.^. 191Q. Pp. iv+57. (Cambridge: At 

 the University Press.) 4^. net. 



Diary of Societies. 



THURSDAY , Octobeb 14. 

 Orric*!, Socutr (at Imperial College of Science and Technoloev) 



at 7.30.-H. A Hughes and P. F Everitt : The Field of View 



?.• *,*'?'''?'"; Telescope.— B. K. Johnson : The Calibration of the 



Divided Circle of a Large Spectrometer. 

 iNSTiTrrroN or .Wtomobiie Enoineees (at 28 Victoria Street), at 



«.— Oriidiintos Meeting. Messrs. Chatterton and Watson : Factors 



affecting Power Output. 

 RoTAL SociEir or Medicine (Neurologr Section), at 8.30.— Dr E 8 



Reynolds: (Presidential Address), The Causes of Nervous Disease. 



FRIDAY. Octobeb 15. 

 RoTAt SociETi or Arts (Indian Section), at 4.30— T. M Ainscoueh- 



British Trade with India. ' 



ROT(L College or Sikoeons or Enol.ini). at 5 —Prof. A Keith- 



Demonstration on the Contents of the Museum. 

 RoTAL Photooeaphic Societi or Geeat Bbitain, at 7.— A. Keighley 



.\n Evening in Lakeland. 

 JcNiOR IxsTiTiTioN Or ExoiNEEBs. at 8.— R S. Fox : Elementary 



Ph.vsics and Cheniistr.v in Relation to Motor Cars. 

 RoTAL SociETT OF Medici!»ii (Elcctro-Therapeutics Section), at 890 — 



S. Gilbert Scott; Presidential Address. 

 Societi or TroHcau Medicine and Htoiene, at 8.30. 



SATURDAY, Octobeb 16. 

 Phisiolooical SociEir (at Guy's Hospital), at 4. 

 NO. 2659, VOL. 106] 



•1I0.VD.4K, Oc-roBEB 18. 

 RoiAi COLUoc or PHr»i<iA«(i or J.ondox, at 4.— Sir Frederick 



Andrewes : Harveian Onition. 

 KorAL College or Huhoeo.vh or K.'^olasd, at 5. — Prof. 8. O. 

 Shattock: Demonvtration of ' Pathologricfil Specimeni in th« 

 Museum. 



TUESDAY, Octobeb 19. 



IlOTAl HOBTICl'LTCBll SOCIEIT, at 3. 



iNSTiiiriiON or Petbolii;!! TrxBKOLOaign (at Boyal Society of 

 .\rts), at 5.30.— Sir Arthur MeU. Duokham: Coal as a Future 

 Source of Oil Fuel Supply. 



ZooLooiCAi Societi or London, at 5.30.— Dr. P. Chalmers Mitchell: 

 Report on the .\dditions made to the Society's Menagerie during 

 the months of June, July, August and September. — Dr. E. H. 

 HanEin : Observations on the Flight of Flying-Fishes. — Dr. 

 W. N. F. Woodland: Some Results of Ligaturing the .interior 

 .\bdominal Vein in the Indian Toad iBulo ttomaticui).—Q. 

 Cotterell : Life-History of the Yellow Dung-Fly : a, Blow-Kly Check. 



RoiAL Photooeaphic Societi or Gbeat Bbitain, at 7.— E. W. H. 

 Piper: Amiens Cathedral. 



WED\ESDAY, Octobeb 20. 

 Entomological Societi or London, at 8. 



ROIAL MiCBOSCOPICAt SOCIETI, at 8. 



THURSDAY, Octobeb 21. 

 RoiAL Aehonactical Societi (at Royal Society of Arts), at S.30. — 



Squad. -Ldr. R. M. Hill: A Comparison of th« Flying Qualities 



of Single- and Twin-engined Aeroplanes. — C. Baker: Night 



Flying. 

 iNSTiTmoN or Mining and ilEiALLrBGi fat Geological Society), 



at 5.4S.— J. Morrow Campbell: The Origin of Primary Ore 



Deposits. 

 ChildStcdi Societi (at Royal Sanitary Institnte), at 6.— Dr. 



A. R. Abelson: A Psychological Study of the Delinquent Child. 



FRIDAY, Octobeb 23. 

 RoTAL College of SrBGEONs of England, at 5. — Prof.' A. Keith: 



Demonstration on the Contents of the Museum. 

 IN.STITTTTION OF ifKCHANicAL Engineehs, at 6. — Capt. H. Riall 



Sankey : Presidential Address . ; 



ROTAL PnOTOOFAPHIC SOCIETY OF GREAT BRITAIN, at 7. — F. MartlD- 



Duncan : Birds and Beasts from man.v Lands. 



CONTENTS. PAGE 



The Site of the University of London 201 



Women at Cambridee 202 



Lunar Tables. By H. C. P 203 



Genesis, Evolution, and History. By J. A. T. 205 



Fertilisers and Parasiticides 206 



Lectures on Folk-lore. By F. C. Bartlett 207 



Elementary Chemistry. By J. R. P 208 



Our Bookshelf 209 



Letters to the Editor: — 



The British Aswciation. — Prof. H. H. Turner, 

 F.R.S., and Prof. John L. Myres ; Prof. A. S. 

 Eddington, F.R.S. ; Wilson L. Fox . . . .211 

 Recapitulation and Descent. — Lancelot T. Hogben ; 



Dr. F. A. Bather, F.R.S 212 



A Fracture-surface in Igneous Rock. (Illustrated.) — 



W. Bevan \Vbitney 2I3 



A Visual Illusion.— Prof. A. E. Boycott, F.R.S. . 213 

 The Behaviour of Time Fuzes. By Prof. A. V. 



Hill, F.R.S ' 214 



The Iridescent Colours of Insects. III. {Illustrated.) 



By H. Onslow 215 



Obituary : — 



Arthur Sidgwick as Naturalist. By E. B. P. . . 218 



Notes 219 



Our Astronomical Column : — 



The Italian Astronomical -Society 2*3 



The Colour of Nebulous Stars 223 



Our Conceptions of the Processes of Heredity. I. 



By Miss E. R. Saunders, F.L.S 224 



The Department of Scientific and Industrial 



Research. By J. W. Williamson 227 



The University of Birmingham 228 



Aeronautics at the Science Museum, South 



Kensington 229 



University and Educational Intelligence 230 



Societies and Academies 231 



Books Received 231 



Diary of Societies 232 



