LIST OF BOOKS OFFERED FOR SALE 
AT THE NET PRICES AFFIXED BY 
DULAU & CO., LTD., 37 SOHO SQUARE, LONDON, W. 
| ARBER (E. A.N.). On the Fossil Floras of the Coal Measures of South 
Staffordshire. London (Roy. Soc.), 1916. pp. 29, with 3 plates. 2s. 6d. 
BATHER (F. A.). Studies in Edrioasteroidea, I-IX. Reprinted, with 
additions, from the Geological Magazine, 1898-1915. London, 1915. 
pp. 136, Svo, and 13 plates. 10s. 
BAYLEY (W. S.). Minerals and Rocks: the Klements of Mineralogy and 
lithology for the use of Students in General Geology. London, 1916. 
pp. viii + 227. Syvo. Llustrated. Cloth. 6s. 
BRYAN (W. A.). Natural History of Hawaii: being an account of the 
Hawaiian People, the Geology and Geography of the Islands, and the 
Native and Introduced Plants and Animals of the Group. Honolulu, 
1915. pp. 596. Royal 8vo. Illustrated. Cloth. £1 5s. 
CHAMBERLIN (T.C.). The Origin of the Earth. Chicago, 1916. pp. 271. 
8vo. Ilustrated. Cloth. 6s. 
CRAMPTON (C. B.) AND CARRUTHERS (R. G.). The Geology of Caithness. 
Edinburgh (Geol. Surv.), 1914. 8vo. Illustrated. 4s. 
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. pp. xiii+ 87. 8vo. Cloth. 6s. 6d. 
ECKEL (E. C.). Iron Ores: their occurrence, valuation, and control. New 
York, 1914. Illustrated. Svo. Cloth. 17s. 
FARRINGTON (O. C.). Meteorites: their Structure, Composition, and 
Terrestrial Relations. Chicago, 1915. pp. x + 333. 8vo. Illustrated. 
Cloth. 8s. 6d. - 
FINLAY (G. I.). Introduction to the Study of Igneous Rocks. London, 1913. 
pp. 228, crown 8vo, with 3 coloured plates and numerous illustrations. 
Flexible leather. 8s. 6d. 
GREGORY (J. W.). Geology of To-day. A popular introduction in simple 
language. London,1915. pp. 328, 8vo, with 24 plates and illustrations. 
Cloth. 5s. 
HAGER (D.). Practical Oil Geology. New York, 1915. pp.150. Crown 8vo. 
Illustrated. Cloth. 8s. 6d. 
HOWE (H. M.). The Metallography of Steel and Cast Iron. New York, 
1916. pp. 641, 8vo, with 45 plates. Cloth. £2 2s. 
IDDINGS (J.). ‘he Problems of Volcanism. (Silliman Memorial Lectures.) 
New Haven, 1914. Roy. 8yo. With 86 illustrations and chart. Cloth. 
£1 Is. 
KEITH (A.). The Antiquity of Man. London, 1915. 8vo. With 189 
illustrations. Cloth. 10s. 6d. 
LAKE (P.). Physical Geography. Cambridge, 1915. 8vo. With 20 plates. 
Cloth. 7s. 6d. 
LECONT (J.). Elements of Geology. 5th ed., revised and enlarged. With 
new plates and illustrations. New York, 1915. 8vo. Cloth. 18s. 
‘LEITH (C. K.). Structural Geology. London, 1914. pp. 169, 8vo, with 
68 text-illustrations. Cloth. 6s. 6d. 
Its purpose is the study and interpretation of rock-structures, not for 
- themselves, but for the light they may throw on stratigraphic problems, 
on economic geology, on the causes underlying the general configuration 
of the earth, and on the earth’s history. 
~ AND MEAD (W. J.). Metamorphic Geology. A Textbook. New 
York, 1915. S8vo. Illustrated. Cloth. 12s. 
