LIST OF BOOKS OFFERED FOR SALE 



AT THE NET PUICES AFFIXED BY 



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

 CAVENDISH SQUARE, LONDON, W. 1. 



AEBER (E. A. N.). Devonian Floras. A study of the origin of Cormophyta. 



Withapreface by D.H.Scott, tivo. Illustrated. Cloth. Cambridge. lls.M. 

 BEYDONE (K. M.). The Stratigraphy of the Chalk of Hants, with Map and 



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



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

 COX (G. H.),DAKE (C. L.), and MUILENBUEG (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. 

 DAVIE S (A. M.). An Introduction to Palfeontology. Illustrated. 8vo. 



Cloth. 1920. 12s. 6d. 

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



New York, 1921. £1 16s. 

 GREGORY (J. W.). The liift 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. Qd. 

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



Illustrated. Cloth. New Y'ork, 1921. 15s. 

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



Cloth. London, 1920. 12s. Qd. net. 



Petrographic IMethods and Calculations, with some Examples 



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



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 Y'ork, 1915. £1. 



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



by Colonel 0. C. Armstrong, pp. viii -1-176. 8vo. With 6 maps. 



Cloth. London, 1922. £1 lis. 6d. 

 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. Bvo. 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 Foraminif era. 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. 



TUTTON (A. E. H.). Ciystallography and Practical Crystal Measurement. 

 Second edition in two volumes. Illustrated. 8vo. Cloth. London, 



1922. Vol. I, Form and Structure. 50s. net. Vol. II, Physical and 

 Chemical. 50s. net. 



