Excerpt from Studies in Spermatogenesis: With Especial Reference to the "Accessory Chromosome" In connection with the problem of sex determination it has seemed necessary to investigate further the so-called accessory chromo some, which, according to Mcclung may be a sex determinant. This view has been supported by Sutton in his work on Brady' stola magna, but rejected by Miss Wallace for the spider. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.