Abstract: | Egg Incubation: Its Effects on Embryonic development in Birds and Reptiles. Edited by D. Charles Deeming and Mark W. J. Ferguson, 1991. xiii+448 pp., illustrated. Cambridge, Cambridge University Press. £110. ISBN 0–521–39071–0. Foodborne Pathogens. By A. H. Varnum and M. G. Evans. 557 pp., illustrated in colour. London, Wolfe Publishing. £70. ISBN 0–7234–1521–8. Diseases of Poultry, 9th ed. Edited by B. W. Calnek, H. John Barnes, C. W. Beard, W. M. Reid and H. W. Yoder, 1991. Illustrated in colour. Wolfe Publishing Ltd. £60. ISBN 0–7234–17067. |