Excerpt from Medusae of the World, Vol. 1: The Hydromedusae History; the American Museum Of Natural History; Columbia University, the National Museum at Washington, and the Museum of the Brooklyn Institute of Arts and Sciences. Through these facilities I have been enabled to review nearly all Of the published works upon medusae, but the review of literature can not pre tend to completeness for 1907 and 1908, although all papers of those years which the author could discover are recorded. 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.