INTRODUCTION TO COMPARATIVE ENTOMOLOGY. By Richard M. Fox and Jean Walker Fox. New York, Reinhold Publishing Corp., 1964. xiv, 450 pp. $9.50. This textbook of entomology is a unique and valuable contribution to the literature in the field of comparative invertebrate zoology. Comparison of insects, myriapods, and arachnoids as animals is emphasized-a feature seldom given attention in introductor...