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1959 Journal of the Lepidopterists' Society 35
cinating symposium of divergent views emerges, as for Incisalia henrici, Colias eurytheme, and Limenitis archippus. However, in a few other instances one wishes that equally full investigations had been made. Surely any grounds for retaining Limenitis astyanax as a race of arthemis are extremely weak, and ignore the biological evidence. The nomenclature is as current as possible. Fortunately, the confusions of the Evans Catalogue did not get into the Mather list.
The format is attractive and the paper carefully edited. The use of quotation marks rather than italics, to distinguish forms from subspecies is most welcome. This device, long followed in the News, reminds the reader of the fundamental difference in kind between forms and aberrations on one hand and subspecies and species on the other.
C. L. Remington, Dept. of Zoology, Oxford University, Oxford, ENGLAND
A CENTURY OF PROGRESS IN THE NATURAL SCIENCES.
California Academy of Sciences, x + 807 pp., illus. San Francisco, 1955. [Available from the Academy, Golden Gate Park, San Francisco 18, Calif., U. S. A.]
This volume, published in celebration of the centennial of the California Academy of Sciences, contains a series of essays on developments of the past century in various branches of science. Not all fields are covered, but most groups of insects are treated in individual essays by specialists; here the emphasis is on the development of modern classification. The excellent brief review on "Lepidoptera" by Wm. T. M. Forbes is of course of particular interest; but to the lepidopterist the volume may be even more valuable for its summaries of groups with which he is less familiar. The essays on other groups of insects and on the classification of all groups of plants provide information which can hardly be found elsewhere in such convenient form. Reviews of progress in biography, paleontology, and conservation are also valuable, though these subjects have been treated more fully in other books. The scope of the essays is worldwide, but the book should be particularly interesting to Californians because of Ewan's introductory chapter on early naturalists in the state.
Peter F. Bellinger
San Fernando Valley State College
Northridge, Calif., U. S. A.