Excerpt from Cultural Studies of Species of Penicillium In a previous paper 25 two species of Penicillium were shown to secrete the proteolytic enzyms which ripen certain varieties of cheese. The effort to identify these organisms necessitated the culture and comparison of numerous other species and a study of the literature of nomenclature for the whole of the genus Penicillium. The difficulties encountered in deciding whether to discuss these forms under old names or to describe them anew from cultural data led to the extension of this study beyond the forms occurring in a dairy investigation so as to include any obtainable species, and especially all species whose identification under published names could be established. 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.