684 



NATURE 



[February 19, 1920 



DIARY OF SOCIETIES. 



THURSDAY. Fehhuarv 19. 



Royal Institution of Great IJkitain, at 3.— A. H. Smith: Illustra- 

 tions of Ancient Greek and Roman Life in the Hritish Museum. 



RovAi, Society, at 4.30. — Prof. B. Moore and T. A.Webster: Studies of 

 Photo-synthesis in Kiesh-water Algae. — Prof. W. M. Bayliss : The 

 Properties of Colloidal Systems. IV. Reversible Gelation in Living 

 Protoplasm.— Rev. F. J. Wyeth : The Development of the Audito'-y 

 Apparatus in Sphenodon punctatus. 



Royal Institute of Public Health, at 5. — Dr. S. R. Gloyne: The 

 Pioblcm of Immunity in Tuberculosis. 



LiNNEAN Society, at 5. — J. S. Huxley and D. F. Leney : Specimens of 

 Sexually Mature .^xolotls Metamorphosed into the Amhlystoma Form by 

 Feeding with Thyroid Gland, and Df Urodele Larvae Precociously Meta- 

 morphosed by Treatment with loiine Solution. — Major H. C. Gunion : 

 Entomologico-Meteorological Records of Ecological Facts in Life of 

 British Lepidoptera. 



Institution of Mining anp Metallurgy (at Geological Society), at 

 5.30. — T. li. Stevens and C. E. Blackett : The Use of Haloid Cyanidesfor 

 the Purpose of Gold Extraction. 



CHiLD-STum Society (at Royal Sanitary Institute), at 6. — Commr. B. T. 

 Coote : Physical Education and its relation 10 National Ideals. 



Chemical Society, at 8.— S. B. Schryver and C C. Wood : A New 

 Method for the Estimation of Methyl Alcohol. — C. S. Gibson and 

 Sir William J. Pope : ^^'-Dichloroethyl Sulphide. — B. Flurscheim : The 

 Relation between the Dissociation Constants of Arids and Bases and the 

 Quanttiaiive Disiribution of Affinity in the Molecule. — S. Dhar : Direct 

 Replace-nent of Negative Groups by Halogen in the Achromatic Series. 

 Part I, Replacement of Nitro-group by Bromine. 



■Society of Antiquaries, at 8.30. 



FRIDAY, February 20. 

 Geological Society of London, at 3.— (Anniversary Meeting.) 

 Royal College of Surgeons, at 5.— Prof. G. Elliot Smith : The 



Evolution of the Cerebellum (Arris and Gale Lecture). 

 Institution of Mechanical Engineers (Annual General Meeting), 



at 6.— E. M. Bergstro n : Recsnt Advances in the Utilisation of Water 



Power (Resumed Discussion). 

 ■Concrete Institute (ai 296 Vauxhall Bridge Road), at 6.— H. K. 



Dyson : Some Points in Reinforced Concrete Design. 

 1 nstitution of Electrical Engineers (Students' Meeting) (at Faraday 



House), at 7.— A. Serner and Others : Discussion on State Ownership v. 



Private Enterprise. 

 Junior Institution of Engineers (at Royal Society of Arts), at 7.30. — 



Prof F. W. Burstall : Ob-.cure Points in the Theory of the Internal- 

 combustion Engine. 

 Society of Trofical Medicine and HvGiENE(at n Chandos Street, W.), 



at 8.30.— Col. W. G. King and Others: Discussion on Small-Pox,— 



Lt.-Col. N. H. Fairley and Capt H. R. Dew; Causes of Death from 



Malaria in Palestine : A Study in Cellular Pathology. 

 RovAL Institution of Great Britain, at g.— Dr. E.J.Russell; 



British Crop Production. 



SATURDAY, February 21. 

 Royal Institution of Great Britain, at 3.— Sir J. J. Thomson: 



Positive Rays. 

 Physiological SaciRTY(at Lister Institute), at 4. 



MONDA K, February 23. 



Royal College of Surgeons, at 5.— Prof. G. Elliot Smith : The Evolu- 

 tion of the Cerebellum (Arris and Gale Lecture). 



Royal Society of Arts, at 8.— C. F. Cross: Recent Researches in the 

 Cellulose Industry (Cantor Lecture). 



Mkdical Society op London, at 8.30.— Sir Charters Symonds : The 

 Surgical Treatment of the Later Stages of Gunshot Injuries of the Chest 

 and of Empyema— Dr. P. M. Smith: The After-results of Certain 

 Surgical Operations. 



Royal Institute of British Architects, at 8.30.— Jay Hambidge ; 

 Greek Design. 



TUESDAY, February 24. 



Royal Horticultural Society, at 3.— J. Hudson : The Cultivation of 

 Fruits u ider Glass with a Minimum of Fire Heat. 



RovalInstitutionofGreatBritain, at3.— Prof. E. Wilson: Magnetic 

 Susceptibility. 



Institution of Civil Enginef.rs, at 5.30 -^^^ir F. J. E. Spring: Restora- 

 tion of a Cyclone- Damaged Breakwater End in Madras Harbour, and 

 coastal Sand Travel near Madras Harbour. 



Zoological Society of London, at 5.30.— The Secretary: Report on 

 the -Additions to the Society's Menagerie during the monih of January, 

 1920.— E. G. Boulenger ; On some Lizards of the Genus Chalcides.— 

 N S. Lucas : Report on the Deaths in the Gardens in igig : with Notes 

 on Hickets and Avian En:ertis.— S. Hirst: Revision of the English 

 Species o Re 1 Spider (Genera Tetranychusand 01i,'onychus). 



RovAL Photographic Society of Great Bkitain (Lantern Meeting), 

 at 7.— Dr. C. A. Swan : Wanderings in Italy. 



Illuminating Engineering Socie'v (at Royal Society of Arts), at 8 — 

 Dr. T. L. Llewellyn and Others : Discussion on Lighting Conditions in 

 Mines, with special reference 10 the Eyesight of Miners. 



WEDNESDAY, February 25. 



Royal Society of Arts, at 4.30.— J. Currie : Industrial Training 



GEotoGiCAL Society of London, at 5.30— H. C. Sargent; The Lower 

 Carboniferous Chert Formations of Derbyshire. 



British Psychological Sociktv (Industrial Section) (at Examination 

 Rooms of the Royal College of Physicians, B-it Queen's Square W C.) 

 at 6 —Dr. H. M. Vernon : The Etfect of Change in Hours of Work on 

 Ouiput. 



THURSDAY, February 26. 



Royal iNSTiTurtON of Great Britain, at 3.— A. H. Smith : Illus- 

 trations of Ancient Greek and Roman Life in the British Museum. 



RoVAL Society, at 4.30. 



Institution of Electrical Engineers, Rontgen Society, and Royal 

 Society OF Medicine (Electro-Therapeutics Section)(at Royal Society 

 of Medicine), at 5 and 8.is(loint Discussion on Electrical Apparatus in 

 relation to X-ray-^).— Dr. R. Morton : The Efficiency of High-Tension 



Transf>rmers as used for X-rav Purpose:, — Major C. E. S. Phillips : Th- 



Problems of Interrupted and Fluctuating Currents. —R. S Wright: Higl; 



Tension 'Iransformers. 

 RoYAi College of Physicians, at 5.— Dr. A. Castellani : The Higher 



Fungi in relation to Human Pathology (Milroy Lecture). 

 CoNCRFTE Institute (at Vauxhall Bridge Road), at 7.30.— E. F. W. 



Grimshaw : Reinforced Concrete Fences and Posts. 



FRIDAY, February 27. 

 Royal Society of MediC'NE (Study of Disease in Children Section), 



at 4.30. — Dr. Mellanby and Others: Discussion on The Influence of 



Accessorv Food Factors in Infant Feeding. 

 Physical Society, at 5.— T. Smith: The Balancing of Errors. — Dr. N. W. 



McLachlan : The Testing of Bars of Magnet Sfeel.— G. D. West: 



The Forces Acting on Heated Metal Foil Surfaces in Rarefied Gases.— 



Miss N. Hosali : Exhibit of Crystal Models. 

 Wirelpss Society of London (at Royal Society of Arts), at 8.— 



A. A. Campbell Swinton ; Some Wirele-s Wonders (Presidential Address). 

 Royal Institution of Great Britain, at 9. — W. B. Hardy: Problem- 



of Lubrication. 



SATURDAY, February 28. 

 RovAL Insthution of Great Britain, at 3.— Sir J. J. Thomson : 



Positive Rays. 



CONTENTS. PAGE 



The Organisation of Scientific Work in India . . . 653 



Modern Physiology 654 



Mendelism. By Prof, L. Dancaster, F.R.S 655 



Aeronautics in Italy. By Prof, G, H. Bryan, F.R,S, 656 



The Re-mapping of the World 658 



Physics for Medical Students, By Dr, H. S. Allen 658 



Our Bookshelf , 659 



Letters to the Editor: — 



Relativity and the Dispiacement of Fraunhofer Lines. 



—Prof. W. G. DufEeld 659 



Statistics of Valour and Service. — Major A. G. 



McKendrick 6fio 



Sugar-beet Seed,— Prof. T. D. A. Cockerell . , , 66i 



An Electronic Theory of Isomerism. — W, E. Garner 661 

 The Sociological Society,— Mrs. T. J. C. Fraser 



Davies 662 



Mirage Effects.-Robert Ross ; Albert Tarn . . . 662 

 Unexplored Papua. (Illustrated.) By Sidney H. 



Ray ... 663 



Alpine Plants for Rock-gardens. (Illustrated.) . . 664 

 A New Copper-refining Industry in Great Britain, 



By Prof, H, C, H, Carpenter, F,R.S 66<> 



The "Times" African Flight. By Prof. J. W. 



Gregory, F,R,S 667 



The National Research Council of the United 



States 66f; 



The Secondary School Curriculum 669 



Notes 670 



Our Astronomical Column : — 



Mercury as an Evening Star ■ . . 674 



Centenary of the Royal Astronomical Society , . . , 674 



Is Venus Cloud-covered ? 675 



Professional Meteorology 675 



Steam Boilers and Economisers 675 



The Belgian Royal Observatory. By Dr. A, C, D, 



Crommelin , . 676 



The Liverpool Marine Biology Committee. By 



S,J, H 677 



Applications of Interferometry 677 



Researches at High Temperatures and Pressures, 

 (Illustrated.) I. By The Hon. Sir Charles A, 



Parsons, K,C.B,, F,R,S 677 



University and Educational Intelligence , , . 681 



Societies and Academies 681 



Books Received 683 



Oiary of Societies . , 684 



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