VOLUME Il. Just PUBLISHED. 
THE DEPOSITS OF THE 
USEFUL MINERALS AND ROCKS: 
Their Origin, Form, and Content. 
By Dr. F. BEYSCHLAG, Prof. J. H. L. VOGT, and Dr. P. KRUSCH. 
Translated by 8. J. TRuscor, Associate Royal School of Mines, London. 
VOL. If: Lodes— Metasomatic Deposits — Ore-Beds — Gravel Deposits. 
With 176 Illustrations. 8vo. 20s. net. . 
: : Previously pwblished : 
VOL. I : Ore-Deposits in General—Masmatic Segregations—Contact 
- Deposits — Tin Lodes — Quicksilver Lodes. With 291 Illustrations. 
8vo. 18s. net, 
°s These two volumes form the complete work on Ore-Deposits. 
MACMILLAN & CO., LTD., LONDON. 
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BATHER (F. A.). Studies in Edrioasteroidea, I-IX. Reprinted, with 
additions, from the Geological Magazine, 1898-1915. London, 1915. 
8vo. 136 pages and 13 plates. 10s. 
BEYSCHLAG (F.), VOGT (J. H. L.), AnD KRUSCH (P.). The Deposits 
of the useful Minerals and Rocks, their Origin, Forra, and Content. 
Translated by EH. J. Truscott. London, 1914. (3 vols.) S8vo. Vol. i, 
with 291 illustrations. Cloth. 18s. ; 
Vol. ii. 1916. With 176 illustrations. Cloth. £1. 
BONHOTE (J. L.). Vigour and Heredity. London, 1915. 8vo. With 
—_ eoloured and uncoloured plates and diagrams in text. Cloth. 10s. 6d. 
CRAIG (E. H.C.). Oil Finding: an Introduction to the Geological: Study 
of Petroleum. 2nded. London, 1914. S8vo. pp. 208. Cloth. 8s. 6d. 
DANA. Third Appendix to the Sixth Edition of Dana’s System of 
Mineralogy, by William E. Ford. Completing the Work to 1915. New 
York, 1915. 8yvo. pp. xiii+ 87. Cloth. 6s. 6d. 
ECKEL (KE. C.). Iron Ores: their occurrence, valuation, and control. New 
York, 1914. S8vo. Illustrated. Cloth. 17s. 
| FINLAY (G. I.). Introduction to the Study of Igneous Rocks. London, 1913. 
Crown 8yo. pp. 228, with 3 coloured plates and numerous illustrations. 
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GREGORY (J. W.). Geology of To-day. A popular introduction in simple 
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HAGHR(D.). Practical Oil Geology. New York, 1915. Crown 8yvo. pp.150. 
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HUTCHINSON (H. G.). Life of Sir John Lubbock (Lord Avebury). London, 
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IDDINGS (J.). The Problems of Voleanism. (Silliman Memorial Lectures.) 
New Haven, 1914. Roy. 8vo. With 86 illustrations and chart. Cloth. 
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JOLY (J.). The Birth-time of the World, and other scientific essays. London, 
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KEITH (A.). The Antiquity of Man. London, 1915. S8vo. With 189 
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