470 



NATURE 



[December 24, 1914 



development in the tissue of various moulds. It does 

 not seem to be due to accidental contamination of the 

 fabric, but is caused by the development, under the 

 influence of moist heat,' of filaments of mould present 

 in the new material. Sterilisation by steam is sug- 

 gested as the most practical means of dealing with 

 the trouble. 



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Electrical Engineering in India. By J. W. Meares. 

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Preparations and Exercises in Inorganic Chemistry. 

 By W. Lowson. Pp. vii+128. (London: Methuen 

 and Co., Ltd.) 2s. 6d. 



Mikrographie des Holzes. By Dr. J. W. Moll and 

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The Fauna of British India, including Ceylon and 

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 Francis.) 20s. 



Memoirs of the Geological Survey, Scotland. The 

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Magnetism and Electricity, including the Principles 

 of Electrical Measurements. By S. S. Richardson. 

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Pottery, for Artists, Craftsmen, and Teachers. By 

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Canada. Department of Mines. Geological Sur- 

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 Stopes. Pp. vi+ 142 + XXV plates. Memoir 54. Anno- 

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 Dodge. Pp. 131. Mines Branch. Lode Mining in 

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The Rare Earths : their Occurrence, Chemistr)', 

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Numerical Trigonometry. By N. J. Chignell. Pp. 

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The Chemistry of Cyanogen Compounds and their 

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Huxley Memorial Lectures to the University of 

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Hazell's Annual for 1915. Edited by T. A. Ingram. 

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The Chemistry of the Radio-Elements. By Prof. 

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Catalogue of the Lepidoptera Phalaenae in the British 

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NO. 2^=;6. VOL. QA~\ 



the Collection of the British Museum. By Sir George 

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 and Co., and others.) 25s. 



The Pupil's Class-Book of Geography : The British 

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First Book of Physiology and Hygiene. By G. D. 

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Scottish National Antarctic Expedition. Ornithology 

 of the Scottish National Antarctic Expedition. Bv 

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 Ramsay. Pp. 203-306 -fvii plates. The Seals of the 

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 By Dr. R. N. R. Brown. Pp. 185-198 4- ix plates. 

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Science and Religion. By Seven Men of Science, 

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CONTENTS. PAGE 



Roger Bacon and Galileo 443 



Tooth of Man and Beast 445 



Economic Entomology from West and East. By 



G. H. C 446 



Text-Books of Chemistry. ByT. M. L 447 



Our Bookshelf 449 



Letters to the Editor : — 



The Camera in Australia. — Prof. T. Johnson . . . 450 



Magnetic Disturbances, 1913.— L. F. Richardson . 450 

 The Quaternary Ice Age. {illustrated.) By Dr. John 



Home, F.R.S. 45 1 



Wireless Telephony. {Illustrated.) 452 



High Explosives in Warfare. By W. Macnab . . 453 

 Prof. Ingram Bywater. Bv Sir E. Ray Lankester, 



K.C.B., F.R.S .' 455 



Science in Warfare 455 



Notes . . 456 



Our Astronomical Column :— 



The Approaching Maximum of o Ceti 459 



The Antwerp Astronomical Society 460 



Some Results of the Recent Eclipse Expeditions . . 460 



Geminid Meteoric Shower, 1914 460 



Kashmir as a Site for a Solar Observatory .... 460 



Colliery Explosions and Coal Dust. By H. L. . 461 

 The Education in London of Refugees from Foreign 



Universities .... 461 

 The Production at Will of Either Fungus-Germs, 

 Flagellate Monads, or Amoebae from the Ultimate 

 Segments cf Small Masses of Zooglcea. {Illus- 

 trated.) By Dr. H. Charlton Bastian, F.R.S. . . 462 



Smithsonian Geological Explorations 468 



University and Educational Intelligence 468 



Societies and Academies 469 



Books Received . 47° 



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