Book Description
Excerpt from Rambles in Search of Shells, Land, and Freshwater The body of every mollusk with which we are con cerned, except those of the slug family, is contained in a membranous sac called the mantle, which not only serves as a model on which the shell is moulded, but is liberally provided at the edges of its open end with the glands that secrete the shelly matter. To this set of glands alone are due the coloured bands and other markings in the shells, as may be seen in the case of a fractured specimen that had been repaired by the owner; in this, the new matter thrown out of the mantle under the fracture is always colourless. 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.
