Pamphlets on Biology Volume 452; Kofoid Collection (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1916 Excerpt: ...more exacting and rigid demands if it is to fulfill its function and to justify itself as worthy of respect. It must grow, not merely in volume, but in its fundamental values, in the breadth and the depth of its philosophical concepts, in the thoroughness of its practice, in the validity and trustworthiness of its conclusions. And so it seems that this is a peculiarly fitting time at which to attempt such a critique of systematic entomology as is here presented. 103 3 I wish here to acknowledge my indebtedness to various colleagues who have assisted in the preparation of this volume. Mr. J. C. Chamberlin has permitted me to draw freely from an unpublished manuscript dealing with the matter of generic concepts and has discussed with me many of the ideas that are here presented. Professors E. O. Essig, S. B. Freeborn, and E. C. VanDyke, of the University of California, have read parts of my manuscript and have offered suggestions and criticisms that have been of very decided aid, especially in those things in which they have disagreed with my views. G. F. F. Stanford University June 15, 1928 List Of Illustrations 7 CHATTII I. The Contribution Of The Systematist To Biology 9 II. The Scope Of Systematic Biology 18 III. The Principles Of Systematic Entomology 24 IV. The Segregation Of Species 36 V. Categories Less Than The Species 51 VI. The Morphological Basis Of Systematic Entomology.... 58 VII. The Preparation Of Material 66 VIII. Entomological Drafting 76 IX. The Description Of Species 100 X. Classification 108 XI. Nomenclature 128 XII. The Training Of The Systematist 158 Index 165 Fig. 1.--Diagrammatic representation of different methods of employing divided drawings for bilaterally symmetrical objects 86 Fig. 2.--Diagrams showing the effect of conventional...