THE 



NAUTILUS 



A MONTHLY 



DEVOTED TO THE INTERESTS OF 



CONCHOLOGISTS 



EDITORS AND PUBLISHERS: 



u a PTLSBRY • I Conservator, Cotichological Section, 



( Academy of Natural Sciences, Philadelphia. 



C W TOHNSON i Curator of the Wagner Free Institute of Science, 



1 Philadelphia. 



$1.00 per Year $1.12 to Foreign Countries 



10 cts. a Copy 



THE NAUTILUS is. the only magazine in America devot- 

 ed to the study of mollusks. Its scope is broad, including art- 

 icles on recent and fossil shells, often illustrated ; on the anat- 

 omy and classification of mollusca ; and papers of popular in- 

 terest dealing with experiences of collectors in the field. Notes 

 on current publications at home and abroad, showing the drift 

 of opinion on conchological subjects, are a valuable feature. 

 Indispensable to the Conchologist and Paleontologist. 



Exchange column free to subscribers. 



A HJew Catalogue 

 Of North American I^atid Shells, 



35 pp. : Price 25 cts. 



