LIST OF BOOKS OFFERED FOR SALE 
AT THE NET PRICES AFFIXED BY 
DULAU & CO., LTD., 34-36 MARGARET STREET, 
CAVENDISH SQUARE, LONDON, W. 1. 
ARBER (E. A. N.). Devonian Floras. A study of the origin of Cormophyta. 
With reine by D. H. Scorr. 8vo. Illustrated. Cloth Cambridge. 
17s. 6d. ; 
BRYDONE (R. M.), F.G.S. The Stratigraphy of the Chalk of Hants. With 
map and paleontological notes. Royal 8vo. pp. 116, with 3 plates and 
large coloured zonal map. 10s. 6d. net. 
CHAPMAN (F.). Australian Fossils, with introduction by Professor SKEATS. 
8vo. Cloth. Melbourne, 1914. 10s. 
DAVIES (A. M.). An Introduction to Paleontology. Illustrated. S8vo. 
Cloth. 1920. 12s. 6d. 
DAVIES (G.M.). Geological Excursions Round London. pp. 160. Cr. Svo. 
Illustrated. Cloth. 4s. 
DUNN (EE. J.). Pebbles. Illustrated by 250 figures. 8yvo. Cloth. 
Melbourne, 1911. 18s. 
DWERRYHOUSE (A. R.). Geological and Topographical Maps: their 
interpretation and use. Second edition. 8yvo. Cloth. London, 1919. 6s. 
EMERSON (F. V.). Agricultural Geology. New York, 1920. 8vo. 
Illustrated. Cloth. 16s. 6d. 
GHIKIE (J.). Structural and Field Geology. Fourth edition, rey. with 69 
plates and text illustrations. 8vo. Cloth. Edinburgh, 1920. £1 4s. 
GIBSON (W.). Coal in Great Britain. London, 1920. S8yo. Illustrated. 
Cloth. £1 1s. 
GREGORY (J. W.). Nature and Origin of Fiords. With diagrams and 
illustrations. London, 1913. S8vo. Cloth. 8s. 6d. 
HARKER (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. Svo. With 16 illustrations. Cloth. London, 1920. 
6s. 6d. 
HOLMES (A.). Nomenclature of Petrology. pp. 284 + viii. Crown 8vo. 
Cloth. London. 1920. 12s. 6d. net. 
LAKE (P.) 4nD RASTALL (R. H.). Text-book of Geology. Third edition. 
London, 1920. S8vo. Cloth. £1 Is. 
LEITH (C. K.) anD MEAD (W. J.). Metamorphic Geology. A Textbook. 
Svo. Illustrated. Cloth. New York, 1915. £1. 
POSTLETHWAITE (J.). Mines and Mining in the (English) Lake District. 
Third edition. Svo. Illustrated. Cloth. Whitehaven, 1913. 5s. 
RITCHIE (J.). The Influence of Man on Animal Life in Scotland: a Study 
in Faunal Evolution. pp.xvit550. Roy.8vo. Illustrated. Cloth. £18s. 
RUTLEY (F.). Elements of Mineralogy. 20th ed. Revised with an 
introduction by G. T. Holloway. pp. xxiit+394. Cr. 8yo. Illustrated. 
Cloth. 6s. 
SMITH (H. G.). Minerals and the Microscope. pp. 127, with Newton’s 
Seale in colours and 12 plates. Cr. S8vo. Cloth. 5s. 
SPURR (J. E.), Editor. Political and Commercial Geology and the World’s 
Mineral Resources. A series of studies by specialists. New York, 1920. 
pp. 1x, 562. Svo. ITllustrated. Cloth. £1 10s. 
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. ; 
VAN DEN BROECK (E.), MARTEL (E. A.), AND RAHIR (Epm.). Les 
Cavernes et les Riviéres souterraines de la Belgique. Bruxelles, 1910. 
2vols. Svo. With 26 plates and text illustrations. Boards. £1 10s. 
WOODS (H.). Paleontology: Invertebrate. Fifth edition. S8yo. Cloth. 
Cambridge, 1919. 12s. 6d. 
