194 



NATURE 



[October 14, 19 15 



actions for the Year 1914. Edited by C. T. Whitmell. 

 Pp. 104. (Leeds : R. Jackson and Son ; London : VV. 

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Principles of General Physiology. By Prof. W. M. 

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Vicious Circles in Sociology, and their Treatment. 

 By Dr. J. B. Hurry. Pp. 34. (London : J. and A. 

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The Rugby Course of Elementary Chemistry. By 

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Handy Logarithmic Tables. By Y. Uraguchi. 

 (Tokyo : Y. Uraguchi.) 12 sen, or 3d. 



On Certain Channels attributed to Overflow Streams 

 from Ice-dammed Lakes. By Prof. T. G. Bonney. 

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A First Course of Engineering Science. By P. J. 

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Experimental Physics. By Prof. H. A. Wilson. 

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National Museum of Wales. Descriptive Handbook 

 to the Relief Model of Wales. By W. E. Whitehouse. 

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Mathematical Papers for Admission into the Royal 

 Military Academy and the Royal Military College. 

 February-June, 1915. Edited by R. M. Milne. Pp. 

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Government of India. Department of Education. 

 Indian Education in 1913-14. Pp. 75 + plates. (Cal- 

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Elementary Practical Metallurgy for Technical 

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The Alligator and its Allies. By Prof. A. M. Reese. 

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Canada. Department of Mines. Geological Survey. 

 Memoir 74 : a List of Canadian Mineral Occurrences. 

 By R. A. A. Johnston. Pp. 275. (Ottawa : Govern- 

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Union of South Africa. Province of the Cape of 

 Good Hope. Marine Biological Report, No. ii. for 

 the year ending 30th June, 1914. Pp. 167. (Cape 

 Town : Cape Times, Ltd.) 



The Spirit of the Soil : or, an Account of Nitrogen 

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 of Auximones in Bacterized Peat. By G. D. Knox. 

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Some Frontiers of To-morrow . Bv Prof. L. W. 

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A History of Babylon. By Prof. L. W. King. Pp. 

 xxiii+340. (London : Chatto and Windus.) 185. net. 



Guide to the Australian Ethnological Collection 

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 Dr. B. Spencer. Second edition. Pp. 128+28 plates. 

 (Melbourne: D. W. Paterson and Co.) 



Edinburgh Mathematical Tracts. No. i : a Course 

 in Descriptive Geometry and Photogrammetrv for the 

 Mathematical Laboratory. By E. L. Ince. Pp. viii+ 

 79. No. 2 : A Course in Interpolation and Numerical 

 Integration for the Mathematical Laboratory. Bv 

 D. Gibb. Pp. vlii+Qo. No. 3 : Relativity. Bv Prof. 

 A. W. Conway. Pp. 43. No. 4 : a Course in 

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British Museum (Natural History). British Ant-^J 

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DIARY OF SOCIETIES. \ 



FRIDAY, October 15. ■ 



I SSTITOTION OF MECHANICAL Engineehs, at 3.— The Theorv of Grinding, ' 



*ith reference to th« Selection of Speeds in Plain and Internal Work : ' 



J. J. Guest. \ 



TUESDAY, October 19. | 



Karaday Society, at 8. — The Transformations of Pure Iron. Discussion- i 



10 be opened by Dr. A. E. OxUy.— Papers : The Transference of Elec- 1 



I ricity by Colloidal Particles: F. Powis. — (i) The Electrolysis of Nitric, ' 



Sulphuric, and Orthophosphoric Acids using a Gold Anode : (2) The i 



Electrolysis of Concentrated Hydrochloric Acids using a Copper Anode : i 



K. H. Jrflfery.— The Thermal Decomposition of Hydrogen Peroxide in j 



Aqueous Solution : W. Clayton. ■ 



Institution of Petroleum Technologists, at 8. — The Petroleum : 



Industry of Mexico : P. C A. Stewart. - 



IVEDNESDAY. October zo. 



Rmtomological Society, at 8. > 



KoYAL Microscopical Society, at 8. — A Statement upon the Theory and ; 



Phenomena of Purpose and Intelligence exhibited by the Protozoa, 



illustrated by Selection and Behaviour in the Foraminifera : E. Heron- - 



All^n. ■; 



CONTENTS. PAGh I 



Beauty and Design in Nature 167 i 



Lime- Sand Bricks and Allied Products. By J. A. A. 167 ; 



The Panama Canal. By V. C 168 



Our Bookshelf 169 i 



Letters to the Editor: — ', 



The Manganese-Ore Requirements of Germany. — Dr. 1 



L. Leigh Fermor . 170 j 



Jupiter's Two Principal Markings. — Scriven Bolton 172 i 



The Orionid Meteoric Shower. — W. F. Denning . 172 j 



Visibility of Distant Objects in Warfare.—" Artillery ■ 



Observing Officer " 172 J 



Distances at which Sounds of Heavy Gun-firing are | 

 Heard.— Lieut. -Col. H. H. Godwin-Austen, 



F.R.S.; Dr. Charles Davison 173 i 



The late Prq|. E. A. Minchin on " The Evolution of 



the Cell. "-Edward Heron-Allen ... iTi \ 

 Death from Static Changes in Atmospheric Pres- 

 sure. By Dr. J. S. Haldane, F.R.S 173 ■ 



Dr. J. Medley Wood 174. 1 



Notes 175 ^ 



Our Astronomical Column :— 'I 



Comet i9i5d?(Mellish) 179 'J 



A Large Fireball ^79 i 



Recent Observations of Variables 179 ! 



The Victorian Observatory '79 ^ 



The Proper Motion of A. G. Wa. 5002 • 179 1 



Family Histories and Eugenics 180 \ 



Character and Intelligence iSo \ 



Science in the War and After the War. By Prof. ' 



J. A. Fleming, F.R.S 180 



The British Association : — -■, 



Section D. — Zoology. — Opening Address by Prof. ■'. 

 E. A. Minchin, M.A., Hon. Ph.D., F,R.S., 



President of the Section 185 ^ 



University and Educational Intelligence '92 I 



Societies and Academies 192 \ 



Books Received 103 j^ 



Diary of Societies . . . • • . . . . 194 ^ 



% 



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