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Cattle and The Future of Beef- Production in 



England. By K. J. J. Mackenzie, M.A., with a preface and chapter by 

 F. H. A. Marshall, Sc.D. Demy 8vo. 7^. dd. net. 



In tliis book the author makes a strong plea tor agricultural reform ; he drives home 

 the lesson, taught us by the war, of the folly of relying upon other countries for food 

 that might be produced at home, and specially urges the need of co-operation 

 amongst farmers, of the development of "dual-purpose" cattle, and, above all, of 

 systematic research on the part of scientists into the many problems of modern agri- 

 culture. Dr Marshall contributes a chapter on the physiology of cattle. 



Microscopic Analysis of Cattle- Foods. By T. N. 



Morris, B.A., St John's College, Cajnbridge.. Large crown 8vo. With 

 54 text-figures. 2s. (yd. net. 



Composition and Nutritive Value of Feeding Stuffs. 



By T. B. Wood, C.B.E., M.A., F.R.S., and E. T. Halnan, M.A. 

 Second edition. Demy 8vo. Paper covers. \s. net. 



Plants Poisonous to Live Stock. By Harold C. Long, 



B.Sc. (Edin.), of the Board of Agriculture and Fisheries. Royal 8vo. 

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British Rust Fungi (Uredinales). Their Biology and 

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Inorganic Plant Poisons and Stimulants. By 



Winifred E. Erenchlev, D.Sc, F.L.S., Fellow of University College, 

 London. Royal 8vo. With 19 illustrations. 6s. net. Cambridge Agri- 

 cultural Monographs. 



British Grasses and their Employment in Agri- 

 culture. By S. F. Armstrong, F.L.S., of the School of Agriculture, 

 Cambridge. Demy Svo. With 175 illustrations. 6s. >iet. 



The Production and Utilisation of Pine Timber in 



Great Britain. Part L Production. By E, R. Burdon, M.A., 

 Investigator in Timber, and A. P. Long, B.A., Assistant Investigator. 



No. r. Sample Plots of Scots Pine at Wobnrn. Demy Svo. Paper covers. 



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Manuring for Higher Crop Production. By E. J. 



Russell, O.B.E., D.Sc, F.R.S. Second edition, revised and extended. 

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The Fertility of the Soil. By E. J. Russell, O.B.E., 



D.Sc, F.R.S. With 9 illustrations. i6mo, Cloth, 2f. net; lambskin, 

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