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 f D. T. Gwtnne-Vaoqhan, M.A. 

 \ B. M. Cutting, M.A 



H. W. Unthank, B.A., B.Sc. 

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AND ILLUSTRATED SCIENTIFIC NEWS. 



THE JANUARY ISSUE contains:— 

 The Cavendish Laboratory and Sir J. J. Thomson, F.R.S. i^tmUd .) 

 The Birth and Death of Worlds. Solar Disturbances during Nov. 1908. Vitus.) 

 Distribution of Matter through Space. (Illustrated.) , rHuafM , fsAy 



The Human Eye ; what may be seen at the back of it (Illustrated.) 

 The Colour of some Wild Animals. ... .- , T ,, 1 ,.j \ 



Measuring Time taken in Conversion of Thought into Action. (Illustrated.) 

 Studies in Marine Life: Hydroid Zoophytes. (Illustrated.) 

 Recent Progress with the X-Rays. (Illustrated.) 



Wallineton, the Walled Town. (Illustrated.) , m ,.j\ 



The Telewriter. (Illustrated.) A New Form of Spectroscope. (i//«s/raferf) 



Notes (Astronomy; Botany ; Chemistry ; Geology ; Meteorology; Ornithology ; Physics , ^°°J°gy>- 

 Microscopy, Photography (Pure and Applied), Reviews, Correspondence, Face of 



the Sky for the Month, etc. 

 Pill I .PAfiE PI ATES ON ART PAPER.— (1) Sir J. J. Thomson, F.R.S. (2) The Human Eye. 

 PUh (3) Marine life 1 fficVo?hi4raphs. A (5 Section of Moon (this is the first of twelve to be joined 



together, forming one very large size photograph when complete). 



3d. AERONAUTICS. 3d. 



Containing profusely illustrated Articles by Experts, and full particulars of the Latest Developments, 



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 The January Number includes a full-page Photo-plate of the Wright Aeroplane inflight. 



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PEARLS AND PARASITES. 



A Series of Essays on Scientific Subjects. 



By A. E. SHIPLEY, M.A, 



Hon. D.Sc. (Priceton), F.R.S., Fellow of Christ's College, Cambridge. 

 With Illustrations. 

 The first of these Essavs deals with the remarkable origin of the Oriental Pearl; an origin described by 

 the Author from material collected by Professor Herdman and Mr. Hornell during their Ceylon Pearl t ishery 

 Expedition. The Author then deals with the conditions of life in the deep-sea abysses and the present state 

 of the British Fishery question, now so much debated. The latter part of the book contains an account of 

 Pasteur and of his great work in elucidating the origin of disease, and of the various agencies, flies, gnats, 

 mosquitoes, etc., by which certain diseases such as malaria and sleeping-sickness, due to minute animal 

 parasites, are conveyed to man. The Author has included in the volume his review of the Penicuik experi- 

 ments carried on by Professor Cossar Ewart on the important subject of Telegony. 



JOHN MURRAY, ALBEMARLE STREET, W. 



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