The Conchologist's First Book, or a System of Testaceous Malachology - Arranged Expressly for the Use of Schools #220627

The common works upon this subject, however, will appear to every person Of science very essentially defective, inasmuch as the relations of the animal and shell, with their dependence upon each other, is a radically important consideration in the examination Of either. Neither, in the attempt to obviate this difficulty, is a work upon Malacology at large necessarily included. Shells, it is true, form, and for many Obvious reasons.