LIST OF BOOKS OFFERED FOR SALE 



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

 CAVENDISH SQUARE, LONDON, W. 1. 



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



With a preface by D. H.Scott. 8vo. Illustrated. Cloth. Cambridge. ITs-M. 

 BEILBY (G.). Aggregation and Flow of Solids. Being the records of an 



experimental study of the Micro- Structures and Physical Properties of 



Sohds in various states. 1900-1921. pp. xvi + 256. 8vo. With 34 



plates. Cloth. London, 1921. £1. 

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



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

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



Cloth. 1920. 12s. M. 

 DAVY (W. M.) AND Farnham (C. M.). Microscopic Examination of the Ore 



Minerals, pp. ix + 154. 8vo. Cloth. New York, 1920. 15s. 

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



New York, 1921. £1 16s. 

 GEEGOEY (J. W.). Nature and Origin of Fiords. With diagrams and 



illustrations. London, 1913. 8vo. Cloth. 8s. Qd. 



The Eift Valleys and Geology of East Africa. With many maps 



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



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



Cambridge, 1919. 8s. 6d. 

 HAWKINS (H. L.). Invertebrate Paleontology, and Introduction to the Study 



of Fossils. 8vo. With 16 illustrations. Cloth, London, 1920. 6s. 6d. 

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



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

 ■ Petrographic Methods and Calculations, with some Examples 



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



HOMEN (T.). East Carelia and Kola Lapmark. Described by Finnish 



Scientists and Philologists. London, 1921. pp. xiii + 264. 8vo. with 



18 maps and 61 illustrations. Cloth. £1 Is. 

 JUKES-BEOWNE (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. 

 KEAUS (E. H.) AND HUNT (W. F.). Mineralogy: an introduction to the 



study of Minerals and Crvstals. pp. xiv + 561. 8vo. Cloth. New 



York, 1920. £1 7s. 

 LAKE (P.) AND EASTALL (E. H.). Text-book of Geology. Third edition. 



London, 1920. 8vo. Cloth. £1 Is. 

 LEITH (C. K.). The Economic Aspect of Geology, pp. xiii -f 467. 8vo. 



Cloth. New York, 1921. £1 10s. 



and MEAD (W. J.). Metamorphic Geology. A Textbook. Svo. 



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



MAETIN (E. A.). Life in a Sussex Windmill, with some amenities of the 

 South Downs. 2nd edition, pp. viii + 118. Seven plates and illustra- 

 tions in the text. Svo. Cloth. London, 1921. 6s. net. 



EEED (F.E. 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. 



EUTLEY (F.). Elements of Mineralogy. 20th ed. Eevised with an intro- 

 duction by G. T. HoUoway. pp. xxii-f 394. Cr. 8vo. Illustrated. Cloth. 6s. 



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

 reference to the Igneous Eocks. With 47 plates. Eoyal Svo. Cloth. 

 £3 3s. net. 



VAN DEN BROECK (E.), MAETEL (E. A.), and EAHIE (Edm.). Les 

 Cavernes et les Eivieres souterraines de la Belgique. Bruxelles, 1910. 

 2 vols. Svo. With 26 plates and text illustrations. £1 10s. 



