LIST OF BOOKS OFFERED FOR SALE 



AT THE NET PRICES AFFIXED BT 



DULAU & CO.. LTD., 34-36 MARGARET STREET. 

 CAVENDISH SQUARE, LONDON, W. 1. 



BRYDONE (R. M.). The Stratigraphy of the Chalk of Hants, with Map and 



Palseontological Notes, pp. 116. Royal 8vo. With 3 plates and large 



coloured zonal map. 10s. 6d. net. 

 COX (G. H.),DAKE (C. L.), and MUILENBURG (G.A.). Field Methods in 



Petroleum Geology, pp.305. 8vo. Illustrated. New York, 1921. £1 4s. 

 DANA (E. S.). Text-book of Mineralogy with an extended treatise on 



Crystallography and Physical Mineralogy. Third edition, revised and 



enlarged, pp. x + 720. 8vo. Cloth, illustrated. New York, 1922. 



£1 5s. 

 DAVIES (A. M.). An Introduction to Palaeontology. Illustrated. 8vo. 



Cloth. 1920. 12s. 6d. 

 EMMONS (V/. H.). Geology of Petroleum, pp. 624. 8vo. Illustrated. 



New York, 1921. £1 16s. 

 GREGORY (J. W.). The Rift Valleys and Geology of East Africa. With many 



maps and illustrations, pp. 479. 8vo. Cloth. London, 1921. £1 12s. 

 HARKER(A.). Petrology for Students. Fifth edition. Crown 8vo. Cloth. 



Cambridge, 1919. 8s. 6d. 

 HOBBS (W. H.). Earth Evolutions and its Facial Expression. 8vo. 



Illustrated. Cloth. New York, 1921. 15s. 

 HOLMES (A.). Nomenclature of Petrology, pp. 284 + viii. Crown 8vo. 



Cloth. London, 1920. 12s. 6d. net. 



Petrographic Methods and Calculations, with some Examples 



of Results Achieved, pp.xx + 516. 8vo. Cloth. London, 1921. £1 lis. 6rf. 



JOHANNSEN (A.). Essentials for the Microscopical Determination of Rock- 

 forming Minerals and Rocks, pp. vi + 53. 4to. Cloth. Chicago, 1922. lis. 



JUKES-BROWNE (A. J.). The Hills and Valleys of Torquay: a Study in 

 Valley Development and an explanation of Local Scenery. 1907. 

 Seven maps and diagrams. 8vo. Cloth. 2s. 6d. net. 



LAKE (P.) AND RASTALL (R. H.). Text-book of Geology. Third edition. 

 London, 1920. 8vo. Cloth. £1 Is. 



LEITH (C. K.). The Economic Aspect of Geology, pp. xiii + 457. 8vo. 

 Cloth. New York, 1921. £1 10s. 



and MEAD (W. J.). Metamorphic Geology. A Textbook. 8vo. 



Illustrated. Cloth. New York, 1915. £1. 



PENZER (N.M.). The Mineral Resources of Burma, with an introduction 



by Colonel 0. C. Armstrong, pp. viii + 176. 8vo. With 6 maps. 



Cloth. London, 1922. £1 lis. ed. 

 POSTLETHWAITE (J.). Mines and Mining in the (English) Lake District. 



Third edition. 8vo. Illustrated. Cloth. Whitehaven, 1913. 5s. 

 RASTALL (R. H.). Agricultural Geology, pp. 340. 8vo. Illustrated. 



Cloth. Cambridge, 1916. 12s. 

 REED (F. R. C). The Geology of the British Empire, pp. 480. 8vo. With 



12 folding maps and 13 maps and sections in the text. Cloth. London, 



1921. £2. 

 RUTLEY(F.). Elements of Mineralogy. 20th ed. Revised with an intro- 

 duction by G. T. Holloway. pp. xxii + 394. Cr. 8vo. Illustrated. Cloth. 6s. 

 SHERBORN (C. D.). Bibliography of the Foraminifera, Recent and Fossil, 



from 1565-1888. 8vo. Cloth. 4s. 

 TEALL (J. J. Harris), M.A., F.G.S. British Petrography: with special 



reference to the Igneous Rocks. With 47 plates. Royal 8vo. Cloth. 



£3 3s. net. 

 WILLIS (J. C. ). Age and Area. A Study in Geographical Distribution and 



Origin of Species, with Chapters by Hugo de Vries, H. B. Guppy, 



Mrs. E. M. Reid, and James Small, pp. vii-f 260. 8vo. Illustrated. Cloth. 



Cambridge, 1922. 14s. 



