Manual of Conchology, Structural and Systematic, Vol. 22

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Excerpt from Manual of Conchology, Structural and Systematic, Vol. 22: With Illustrations of the Species, Achatinellidae Information used in compiling the maps on pages 183, 277, and 341 was largely Supplied by Dr. Cooke and Mr. Spalding. Professor Hyatt's ms. Descriptive of tree snails was not utilized in the preparation of this volume for the reason that his treat ment of species could not be reconciled with the views herein expressed. Moreover, it is believed that had Hyatt visited the Islands and seen the actual association of forms, his ideas must have been very materially changed. Professor Hyatt's general results in phylogeny and zoogeography, so far as worked out at the time of his death, are given in an appendix pp. 370 for comparison with the views developed in course of this study. 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.