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GEOLOGY, MINERALOGY, AND MINING. A Primer of Geology. Hilustrated. Poll Svo. 15 Class-Book of Geology. Illustrated. Crown 8vo. 155. Text-Book of Geology. Hilustrated. Outlines of Field Geology. BSir ARCHIBALDI GEL KIE, K. Cobe Ancient Volcanoes of Great Britain. The Scenery and Geology of Scotland,

Viewed in Connexion with its Physical Geology. The Founders of Geology. BASI ARCHIBALD GEIKIE, K.C.B., Geology for Beginners. An Introduction to Geology. 2.5. The Scenery of England and the Causes The Scenery of Switzerland. Bc..ra Crowe 30. 6. Volcanoes of North America. ... ProSD Tel.C. RUSSELL. The Geology of South Africa. The EH. HATCH, Ebe Du pand Popular Lectures and Addresses. KELVIN, F. m. Physics of the Earth's Crust. Mr.G.S. Text-Book of Palæontology. Franslated CHARLES K. Elements of Crystallography, for Students

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A WEEKLY ILLUSTRATED JOURNAL OF SCIENCE.

To the solid ground

Of Vature trusts the mind which builds for aye."-WORDSWORTH.
No. 2072, VOL. 81)
THURSDAY, JULY 15, 1909

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