Excerpt from Bulletins of American Paleontology, 1966, Vol. 50 Discussed briefly are the interlaminate figures displayed in the walls of barnacles; the designation of right and left for the valves of the operculum; and a method of recovering opercular valves entombed in the shell. The citations in the Bibliography deal primarily with barnacles in the Order Thoracica. 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.