| At the Zoological Congress at Cambridge I imparted, especially for the exclusively English speaking and reading entomological public, some notions on this biological phenomenon, the existence of which I think to have discovered by studying the ontogenesis of caterpillars of Sphingidae, and also in the imagines of several families of Rhopalocera, more particularly in those of the Pieridae; the results of these studies have however been published in German. Now, before the Transactions of that Congress had been published, an article entitled » The Colours and Pigments of Butterflies” by Miss M. I. Newbegin appeared in the February number of »Natural Science”, in which, besides some other papers of these latter days on the same subject, she also discusses my... |
