The Sessile Barnacles, Cirripedia, Contained In The Collections Of The U. S. National Museum: Including A Monograph Of The American Species (1916) is a comprehensive book written by Henry Augustus Pilsbry. The book is focused on the study of sessile barnacles, a type of marine invertebrate, and their classification and taxonomy. The author describes the specimens of sessile barnacles collected by the U.S. National Museum and provides a detailed monograph...