Abstract
THE present treatise affords an excellent example of the light that may be thrown on questions of biological interest by the scientific use of entomological data. Dr. Jordan here presents a valuable résumé of some of the most important results of the elaborate investigation of the chitinous sex-organs of insects, more particularly the Papilios and Sphingidæ, carried on by him for many years past at the zoological museum at Tring. These researches, the detailed results of which have already appeared in the pages of “Novitates Zoologicæ,” are of high interest, not only to entomologists, but also to all students of the methods of evolution.
Der Gegensatz zwischen geographischer und nichtgeographischer Variation.
By Karl Jordan. Pp. 59; with 73 figures in the Text. (Leipzig: W. Engelmann, 1905.)
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D., F. Der Gegensatz zwischen geographischer und nichtgeographischer Variation . Nature 74, 6 (1906). https://doi.org/10.1038/074006a0
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DOI: https://doi.org/10.1038/074006a0