NEMATODES OF TROPICAL CROPS. Technical Communication of the Commonwealth Bureau of Helminthology, No. 40. Medium 8vo., Cloth Boards, Tropical Binding, pp. 355 This book coded CBH/TC40 is available from: CAB Central Sales Branch, Farnham House, Farnham Royal, Slough, Bucks, England. Price £4. 0s. 0d. ($ 10.40) PLANT NEMATOLOGY, W. R. Jenkins and D. P. Taylor. Reinhold, New York, 1967. pp. xvji + 270. £5.16s. 6d. AN INTRODUCTION TO PLANT DISEASES. B. E. J. Wheeler. John Wiley & Sons Ltd. London. 1969, pp. ix + 374. Text references and index. Price £3. 5s. 0d. PRINCIPLES OF PLANT AND ANIMAL PEST CONTROL. Volume 4. Control of Plant Parasitic Nematodes. Publication 1696 of the National Academy of Sciences, Washington, D.C. 1968, pp. xii + 172. Price $5.00. MALAS HIERBAS EN CAFETALES DE EL SALVADOR (Weeds of coffee in El Salvador) by J. A. Lagos and E. F. Calles (in Spanish). Institute Salvadoreno de Investigaciones del Cafe, Santa Tecla, El Salvador, pp. 36. Price not stated. WEEDS IN IRAQ by G. S. Hassawy, S. A. Tammimi and H. Al-lzzi. Iraq Ministry of Agriculture, Botany Division, Technical Bulletin No. 167, March 1968. pp. 256. Obtainable from Ministry of Agriculture, Botany Division, Baghdad, Iraq. Price not stated. THE COTTON MANUAL - A field work guide to modern cotton growing for agricultural extension workers in the southern region of Malawi, pp. 75. SISAL. G. W. Lock. Longmans, Green and Co. Ltd., London. 2nd edition 1969, pp. xix and map + 365. References and index. Price £3. 0s. 0d. CHEMICALS FOR PEST CONTROL. G. S. Hartley and T. F. West. Pergamon Press Ltd., 1969. First Edition. Pages xv + 316. Price £2. 5s. 0d./ £2. 25p (flexicover. £1. 15s. 0d./£1. 75p). ADVANCES IN PEST CONTROL RESEARCH. VOLUME 8. Edited by R. L. Metcalf. Published by John Wiley & Sons. Ltd., Baffins Lane, Chichester, Sussex, pp. 255. Price 7. 0s. 0d. Behaviour and fate of s-triazines in Soils. C. I. Harris, D. D. Kaufonan, T. J. Sheets, R. G. Nasfi and P. C. Kearney. Refs. 188, pp. 55. Insect sex pheromones. H. H. Shorey, L. K. Gaston and R. N. Jefferson. Refs. 211, pp. 70. The bipyridylium herbicides. A. Calderbank. Refs. 225, pp. 109. WORLD CROP PROTECTION Volume 1. Pests and diseases by J. H. Stapley and F. C. H. Gayner, pp. 270 Volume 2. Pesticides by K. A. Hassail, pp. 250 lliffe Books, 1969. Prices: Vol.! £4. 15s. 0d., Vol.2 £4. 5s. 0d., if ordered together £8. 10s. 0d. PESTICIDE SCIENCE Journal of International Research and Technology on Crop Protection and Pest Control TROPICAL ANIMAL HEALTH AND PRODUCTION THE ZOOLOGICAL RECORD
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