Excerpt from History of British Mollusca, Vol. 1: And Their Shells Our valued and lamented friend, the late William Thompson, of Belfast, who had devoted years of study to the British Mollusks, aided us, as long as he lived, with every possible assistance that lay in his power. In all that concerns the distribution of Irish species, his hand may be traced, and advice, notes and specimens were con stantly coming from him for our use. For many Of the details that we are enabled to give respecting the distri bution and range of the species described, we owe the fullest thanks to Mr. M'andrew, of Liverpool, who, with a zeal too rarely imitated, has for years spared neither expense nor labour in searching out marine animals in their deepest recesses, a work, often-times, of no small risk and danger. 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.