This is a revised edition of a widely praised guide to the birds of the largest of the Caribbean islands and the neighboring Virgin Islands. It includes detailed accounts of all 284 well-documented species known to occur in the region, 273 being illustrated. The book also contains specific sections entitled "Biogeography" and "Conservation" to foster an appreciation of the uniqueness of the region's wildlife and to develop an awareness of local conservation issues. The section "Places to Bird" will help make the stay of short-term visitors more productive. The book also substantially updates the data on avian distribution and abundance in the region covering records through November 1988. From reviews of the first edition: "This well-illustrated volume is a must for any student of birds visiting Puerto Rico or the Virgin Islands."--Chandler S. Robbins, The Quarterly Review of Biology "A valuable and informative guide."--James A. Dick, The Wilson Bulletin "This well-written book is the first comprehensive guide to the birds of Puerto Rico and the Virgin Islands. All species, including winter visitors (which comprise 47 percent of the avifauna) are described and illustrated, making a second volume for identification of North American migrants unnecessary. . . . Aside from being a fine field guide, the book contains useful summaries of the biogeography of the region and the ecology of avian populations. . . . A major contribution is Raffaele's presentation of a wealth of hitherto unpublished information on the natural history of the region's birds."--James W. Wiley, Ibis

Vegetable production; Research, extension, and supporting services; Supply and marketing.

With Special Reference To The American Or West Indian Flamingo. National Audubon Society, Research Report No. 5.

The Institute of Ecology (TIE) was organized to provide a mech anism for addressing ecological and environmental issues that were beyond the special interests of ecology as a profession. One method of evaluating such issues is the workshop, and this report describes the results of the third TIE workshop on a major environmental subject. The ecology of tropical regions is of interest to all the inhabitants of the biosphere. The tropics provide mankind with both the opportunity for and the challenge of essential resources, land for settlement and development, and waters for numerous uses. Moreover, they provide examples of misuse of the landscape, fragility of ecological systems, and serious environmental problems. Unfortunately, the study of the ecology of the tropics has not kept pace with the ecology of other regions. The purpose of this report, therefore, is to determine the research approaches that will lead to advances in our theoretical un derstanding of tropical systems and, more importantly, in the applica tion of that knowledge to human problems. Although the principal focus of the report is on the neotropics, it will be useful to the full spectrum of persons concerned with the tropics around the world government officials, sCientists, students of ecology, and others. TIE is especially pleased to thank the numerous scientists and ad ministrators who participated in the workshop and who contributed to this report. Arthur D.

Agricultural research monograph on traditional farming systems in eastern Nigeria - examines land utilization, and cultivation techniques of small farm sizes in a rural area of high population density, and covers soil fertility, crop yields, input output features, agricultural incomes, etc. Bibliography pp. 251 to 269, graphs, maps and statistical tables.