NATURAL SCIENCE. 



The following items in our A UG UST Number are of interest to Geologists : — 



NOTES AND COMMENTS.— Sexual Characters in Nautilns. Origin of the 



Cephalopods. Fossil Plants of the Coal-measures. Illinois and its State 



Geologist. 

 ARTICLES. — Some Casual Thoughts on Museums, by Sir Henky Howorth. 



Chemistry and Physics in the ''Challenger" Report, by A. Ritchie Scott. 



The Newcastle Museum of Natural History, by A. Meek. Huxley, by E. 



Ea.y Lankester, p. Chalmers Mitchell, and A. Smith Woodward. 



(With portrait of Huxley at the age of 32.) 

 REVIEWS OF NEW BOOKS.— Cooke's "Molluscs" in Cambridge Natural 



History. Keane's " North Africa." T. G. Elger's "The Moon." 

 OBITUARY.-(V. Ball, W. C. Williamson.) NEWS, CORRESPONDENCE, &c. 



A few copies of the Second Edition of our 



SPECIAL " CHALLENaER " J^UMBER 



Are still to be had, pi-ice Is. 



Professor G. A. Lebour, F.G.S., calls this "The most wonderful scientific 

 shillingsworth of the age." 



All Geologists shotdd purchase this, as well as the Supplement on Chemistry 

 and Physics in the August Nihmher. 



Order at once through your bookseller, or directly from 



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PALAEONTOLOGIA INDICA, 



Being figures & descriptions of the Organic remains produced 

 during tfie progress of the Geological Survey of India. 



CALCUTTA. Royal 4to. Plates. 



Series I, III, V, VI, VIII. Cretaceous Fauna of Southern India, by Stoliczka 

 and Blanford. 4 vols, well bound in half morocco. 



Series II, XI, XII. The Fossil Flora of the Gondwana System, by Feistmantel, 

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Series IX. Jurassic Fauna of Kach. Vol. I. Cephalopoda, by Waagen, well bound 

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Series IV. Indian Pre-Tertiary Vertebrata, by Huxley, Miall, and Lydekker. 

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Series VII and XIV. Tertiary and Upper Cretaceous Fauna of Western India, by 

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Series XIII. Salt Range Fossils, by W. Waagen. I. Productus Limestone Fossils. 

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Series XIII. Salt Range Fossils. Vol. IV, part 1. Index to the Genera and Species 

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