CAMBRIDGE AGRICULTURAL 

 MONOGRAPHS 



GENERAL EDITORS: T. B. WOOD and E. J. RUSSELL 



Each volume of this series will contain a summary of the present position 

 on some particular aspect or branch of agricultural science by an expert of 

 acknowledged authority. 



The treatment will be critical and impartial, and sufficiently detailed on 

 all points of fundamental importance to be of use alike to all readers, but 

 especially to those who are not in touch with an institution possessing a well- 

 equipped reference library. Full references will be given, and a bibliography 

 attached for the benefit of those who wish to follow up any particular point. 



Now ready 



Inorganic Plant Poisons and Stimulants. By WINIFRED E. 

 BRENCHLEY, D.Sc., F.L.S. With 19 illustrations. Royal 8vo. 53 net. 



In preparation 



Poisonous Plants. By H. C. LONG. 



The Strength of Wheat Flour. By Professor T. B. WOOD, M.A. 

 The Constitution of the Soil. By E. J. RUSSELL, D.Sc. 

 Disease Resistance. By R. H. BIFFEN, M.A., F.R.S. 



THE JOURNAL OF AGRICULTURAL SCIENCE 



Edited by R. H. BIFFEN, M.A., A. D. HALL, M.A., F.R.S., 

 and T. B. WOOD, M.A. 



The Journal is devoted wholly to definitely scientific papers on agricultural 

 subjects, and contains original papers, occasional visuvnis or critical articles 

 on recent advances in the various branches of agricultural science, notes on 

 the more important papers appearing in British and foreign agricultural 

 journals, short notes from contributors who may wish to put on record 

 exceptional cases, analyses, etc., which do not require a full paper, and 

 articles from Indian and Colonial workers descriptive of soil, climate, and 

 other conditions under which agricultural operations are carried on in tropical 

 and semi-tropical countries. 



The Journal is mainly intended to circulate among agricultural teachers 

 and experts, farmers and land agents having an interest in the scientific side 

 of their profession, agricultural analysts, seedsmen, millers, manure manu- 

 facturers, etc., in this and other English-speaking countries. It is issued in 

 quarterly parts of about 100 pages, with plates and figures, four parts con- 

 stituting a volume. The current volume is Volume VII. 



Price to subscribers, 153 net per volume, post free, payable in advance. 

 The price of each part sold separately is 53 net. 



Vols. I, II, III, IV, V and VI now ready. Paper covers. 153 net per 

 volume. Bound in Buckram, i8s 6d net per volume. 



AGRICULTURE IN THE TROPICS 



An elementary treatise 



By J. C. WILLIS, M.A., Sc.D. 



Second edition, revised. With 31 plates. Demy Svo. gs net 



Cambridge University Press 



C. F. Clay, Manager: Fetter Lane, London 



