Excerpt from Memoirs of the Carnegie Museum, 1919-1921, Vol. 8The third Memoir, upon the Mussel-shells of the South American Continent, is again from the pen of Dr. A. E. Ortmann The Carnegie Museum is fortunate in possessing without. Doubt the largest collection of the mussel-shells of South America preserved with the soft parts. This collection was mainly made through the labors of Mr. John D. Haseman on the occasion of the Carnegie Museum Expedition to Central South America. While the Carnegie Museum does not as yet possess specimens of all of the species, which in former times have been described by those who have written upon the mussel-shells of South America, and much remains to be done in this field, Dr. Ortmann has had more material representing the animals which inhabit the shells than any other author who has ever written upon this theme. One of the most interesting results of his research is the confirmation of the affinity of numerous South American forms with those of Africa and of Australia.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.