SELECTION FROM THE GENERAL CATALOGUE 
OF BOOKS PUBLISHED BY 
THE CAMBRIDGE UNIVERSITY PRESS 
Manuring for Higher Crop Production. By E. J. 
RUSSELL, D.Sc., Director of the Rothamsted Experimental Station. 
With 1 6 illustrations. Demy 8vo. 33 net. 
The Fertility of the Soil. By E. J. RUSSELL, D.Sc. With 
9 illustrations. Royal i6mo. Cloth, is 3d net. Leather, 2s 6d net. 
Cambridge Manuals Series. 
Agricultural Geology. By R. H. RASTALL, M.A., late 
Fellow of Christ's College and Demonstrator of Geology in the University 
of Cambridge. With 51 illustrations. Demy 8vo. los 6d net. 
Cambridge Geological Series. 
Rubber and Rubber Planting. By R. H. LOCK, Sc.D. 
With 10 plates and 22 figures. Crown 8vo. 53 net. 
Agriculture in the Tropics. An elementary treatise. 
By J. C. WILLIS, M.A., Sc.D. Second edition, revised. With 31 plates. 
Demy 8vo. gs net. Cambridge Biological Series. 
A Manual and Dictionary of the Flowering Plants 
and Ferns. By J. C. WILLIS, M.A., Sc.D. Third edition. Crown 8vo. 
i os 6d net. Cambridge Biological Series. 
The Classification of Flowering Plants. By ALFRED 
BARTON RENDLE, M.A., D.Sc., F.L.S. Vol. I. Gymnosperms and 
Monocotyledons. With 187 illustrations. Demy 8vo. IDS 6d net. 
Cambridge Biological Series. 
Grasses: a Handbook for use in the Field and Laboratory. 
By H. MARSHALL WARD, Sc.D., F.R.S. With 81 figures. Crown 8vo. 
6s. ' Cambridge Biological Series. 
Trees: a Handbook of Forest Botany for the Woodlands and 
the Laboratory. By H. MARSHALL WARD, Sc.D., F.R.S. Vol. I. 
Buds and Twigs. Vol. II. Leaves. Vol. III. Flowers and Inflor- 
escences. Vol. IV. Fruits. Vol. V. Form and Habit, with an appendix 
on Seedlings. With numerous illustrations. Crown 8vo. 43 6d net each. 
Cambridge Biological Series. 
Botany. A Text-Book for Senior Students. By D. THODAY, 
M.A., Lecturer in Physiological Botany and Assistant Director of the 
Botanical Laboratories in the University of Manchester. With 205 
illustrations. Crown 8vo. 53 6d net. 
Types of British Vegetation. By members of the Central 
Committee for the Survey and Study of British Vegetation. Edited 
by A. G. TANSLEY, M.A., F.L.S. With 36 plates and 21 figures. Crown 
8vo. 6s net. 
Lessons on Soil. By E. J. RUSSELL, D.Sc. With 58 illus- 
trations. Large crown 8vo. is 6d net. Cambridge Nature Study 
Series. 
Weeds. Simple Lessons for Children. By ROBERT 
LLOYD PRAEGER. With 45 figures and 3 plates. Large crown 8vo. 
is 6d net. Cambridge Nature Study Series. 
Cambridge University Press 
Fetter Lane, London: C. F. Clay, Manager 
