Embryology of Insects and Myriapods

Abstract

WITH the growth and rise of the modern subject of experimental embryology, renewed interest has asserted itself in regard to the ‘normal’ developmental phases of animals. The resulting demand is likely to be for more exact studies of the development of individual organs and parts. In this connexion the re–investigation of their intimate origins, cell by cell, seems likely to be called for. In so far as insects are concerned, the experimental aspects of their development have not, as yet, progressed very far, and at this stage a stock–taking of the position as regards the general embryology of these animals is opportune. This has been provided for in the new book by Messrs. Johannsen and Butt, who have restated the modern position of the subject in a clear and readily understandable style. Both authors have published original researches in embryology which qualify them for this task. Their work is one of judicious compilation and the unbiased assessment of conflicting views: in both these respects it has been ably accomplished. Embryology of Insects and Myriapods The Developmental History of Insects, Centipedes and Millepedes from Egg Deposition to Hatching. By Prof. Oskar A. Johannsen and Ferdinand H. Butt. (McGraw–Hill Publications in the Zoological Sciences.) Pp. xi + 462. (New York and London: McGraw–Hill Book Co. Inc., 1941.) 35s.