BIBLIOGRAPHY 



NORTH AMERICAN CONCHOLOGY. 



ISillgley. — Useful Knowledge ; or a Familiar and Explanatory 

 Account of the various Productions of Nature, &c. &c, illus- 

 trated with numerous figures, &c. : by the Rev. William 

 Bingley, A. M., F. L. S., &c. In three volumes. Yol. iii, 

 Animals. Philadelphia, 1818. 



Barnes. — Descriptions of five species of Chiton : by D. W. 

 Barnes, M. A. (In Silliman's Journal, o. s., vol. vii, No. 1, 

 p. 69, date of title, 1824.) 



