442 



NATURE 



[December 17, 1914 



symptom was foul-smelling breath and putiid expec- 

 toration. The fungus was shown to be pathogenic to 

 the gxiinea-pig and rabbit, producing bilateral purulent 

 pleurisy. Treatment with potassium iodide caused 

 marked improvement. — F. Kerforne : The systematic 

 position of the deposits of iron ore in the lower 

 Ordovician in the region of Chateaubriant. 



BOOKS RECEIVED. 



South Australia. A Review of Mining Operations 

 in the State of South Australia during the Half-Year 

 ended June 30, 1914. Pp. 64. (Adelaide : R. E. G. 

 Rogers.) 



Department of Mines. Geological Survey of 

 N.S.AV. The Great Australian Artesian Basin and 

 the Source of its Water. By E. F. Pittman. Pp. 57. 

 (Sydney : W. A. Gullick.) 



Transactions of the Paisley Naturalists' Societv. 

 Edited by Rev. C. A. Hall. Vol. ii. Pp. xvi+120. 

 (Paisley : A. Gardner.) 3s. 6d. net. 



Intermediate Practical Chemistry for University 

 Students. By F. W. Atack. Pp. viii + 204. (London 

 and Manchester : Sherratt and Hughes.) 45. net. 



The Elements of Electro-Plating. By J. T. 

 Sprague. Pp. vii + 72. (London : E. and F. N. Spon, 

 Ltd.) 15. 6d. net. 



Liquid Drops and Globules : their Formation and 

 Movements. By C. R. Darling. Pp. x + 83. (Lon- 

 don : E. and F. N. Spon, Ltd.) 2s. 6d. net. 



The Dynamics of Surfaces : an Introduction to the 

 Stud)- of Biological Surface Phenomena. By Prof. L. 

 Michaelis. Translated by W H. Perkins. Pp. viii + 

 118. (London : E. and F. N. Spon, Ltd.) 4s. net. 



Motion of Liquids. By Lieut.-Col. R. de Villamil. 

 Pp. xiv + 210. (London : E. and F. N. Spon, Ltd.) 

 "js. 6d. net. 



An Introduction to the Study of Fossils (Plants and 

 Animals). By Prof. H. W. Shimer. Pp. xiv + 450. 

 (London : Macmillan and Co., Ltd.) los. 6d. net. 



Iowa Geological Survey. Vol. xxiv. Annual Re- 

 port, 1913, with accompanying Papers. Pp. xvi + 792. 

 (Des Moines : Iowa Geological Survey.) 



The Cambridge University Calendar for the Year 

 1914-15. Pp. XXX+1034. (Cambridge University 

 Press.) ys. 6d. net. 



Department of the Interior. U.S. Geological Sur- 

 vey. Mineral Resources of the L^nited States. 

 Calendar Year, 1912. Part i., Metals. Pp. 1079. 

 Part ii., Non-Metals. Pp. 12 18. (Washington : 

 Government Printing Office.) 



Plane Trigonometry and Tables. B}' G. Wentworth 

 and D. E. Smith. Pp. V+188 + V+104. (Boston and 

 London : Ginn and Co.) 55. 



Elements of General Science. By Dr. O. W. Cald- 

 well and W. L. Eikenberry. Pp. xiv + 308. ^(Boston 

 and London : Ginn and Co.) 45. 6d. 



Bergens Museum. Aarsberetning for 1913 og iste 

 halvaar 1914. Pp. 122. Aarbok 1914-15. iste Hefte. 

 Avhandlinger og Aarsberetning utgit av Bergens 

 Museum. By J. Holmboe. Skrifter. Ny Roekke. 

 Bind i., No. 2. Studies on the Vegetation of Cyprus. 

 By J. Holmboe. Pp. 344. (Bergen : J. Griegs.) 



An Account of the Crustacea of Norway. By G. O. 

 Sars. Vol. vi., Copepoda Cyclopoida. Parts v. and 

 vi., Cyclopidae. Pp. 57-80. (Bergen : Museum.) 



Elements of Forestry. By Profs. F. F. Moon and 

 N. C. Brown. Pp. xvii + 392. (New York: J. Wiley 

 and Sons, Inc. ; London : Chapman and Hall, Ltd.) 

 Ss. 6d. net. 



American Handbook for Electrical Engineers. H. 

 Pender, Editor-in-Chief. Pp. xviii + 2023. (New 

 York : J- Wiley and Sons, Inc. ; London : Chapman 

 and Hall, Ltd.) 21s-. net. 



NO. 2355, VOL. 94] 



DIARY OF SOCIETIES. 



THURSDAY, December 17. 



Royal Society of Arts, at 4.30. — The Indigo Industry : Dr. F. Mollwo 

 Perkin. 



Insti+ution of Mining and Metallurgy, at 8. — Adjourned Discussion : 

 Persistence of Ore in Depth : T. A. Rickard. 



Institution of Petroleum Technologists, at 8. — Notes on the 

 Development of the Trinidad Oilfields : Prof. J. Cadman. 



LiNNEAN society, at =. — " Witches Brooms," cau>ed by the Gall-mite, 

 Eriopltycs iriradiaius, Nal., on Salix fragilis, illustrated by lantern- 

 slides : M. Christy. — The Brent Valley Bird Sanctuary ; An Experiment 

 in Bird Protection : W. M. Webb. 



FRIDAY, December 18. 

 Institution OF Mechanical i<.nginekrs, ai 8. — Audible and Other Cab 



Signals on British Railways ; W. C. Acfield, L. P. Lewis, V. L. Raven, 



W. A. Stanier, and W. WiUox. 

 Wireless Socif.tv, at 8. -The High Frequency Resistance of Wires and 



Coils : Prof. G. W. Osborn Howe. 

 Physical Society, at 5.— Exhibition and Description of Some Apparatus 



for Class Work in Practical (hysics: Dr. G. r.C. Searle. — A Vacuum 



Guard Ring and its Application to the Determination of the Thermal 



Conductivity of Mercury: H. R. Nettteton. 



MONDAY, December 21. 

 Institute of Actuaries, at 5. — Canadian Mortgages Regarded as a 

 Field for the Investment of the Funds of British Life Assurance Com- 

 panies, with some General Notes on Canadian Indebtedness: A. D. 

 Besant. 



CONTENTS. PAGE 



The Royal Society of Arts, By A, A. Campbell 



Swinton 415 



Household Science. By A. S 416 



Hog-Spears and Fishing Rods. By R. L 416 



Mathematical Text-B^oks 417 



By-Ways of Medicme. By Prof. R. T. Hewlett . . 418 



Our Bookshelf 419 



Letters to the Editor : — 



Wet Bulb Temperature and Climatology. — Prof. 

 Leonard Hill, F.R.S., Manin Flack, O. W. 



Griffith ... .... 419 



Forests and Floods.— Dr. John Aitken, F.R.S. . , 420 

 On an Apparently Instinctive Character of the Genus 



Bufo.— Geo. E. NichoUs 420 



A Lunar Halo.— Thos. Todd 421 



Colloidal Chemistry in Relation to Industries.— I. 



By E. Hatschek 421 



"Field- Work" with the British Association in 



Australia. {Illustrated.) By W. A. H 423 



The Health of the Expeditionary Force. By Stephen 



Paget 425 



Thinking Animals. By C. S 426 



The Rev. Sir John Twisden. By Sir G. Greenhill, 



F.R.S 427 



Notes ...... 427 



Our Astronomical Column :— 



Comet i9i3/(Delavan) 432 



The Spanish Solar Eclipse Expedition 432 



The Recent Transit of Mercury 432 



Atmospheric Pollution. {, llnstrated.) . 433 



The Natural History of an American Desert Basin. 



{Illustrated.) By F. C 434 



Finishing Temperatures of Rail Steel 436 



Forest Entomology 43^ 



Australian Handbooks for the British Association . 436 



Chemistry at the British Association 437 



University and Educational Intelligence 438 



Societies and Academies 44° 



Books Received 442 



Diary of Societies 442 



Editorial and Publishing Offices: 



MACMILLAN & CO., Ltd., 



ST. MARTIN'S STREET, LONDON. W.C. 



.Advertisements and business letters to be addressed to the 



Publishers. 



Editorial Communications to the Editor. 



Telegraphic .Address : Phusis, London. 

 Telephone Number : Gerrard 8830. 



