THE 



NAUTILUS 



A MONTHLY 



DEVOTED TO THE INTERESTS OF 



CONCHOLOGISTS 



EDITORS AND PUBLISHERS: 



H A PILSBRY J Conservator, Conchological Section, 



( Academy of Natural Sciences, Philadelphia. 



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



( 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 New Catalogue 



Of North American I^and Shells, 



35 PP- ' Price 25 ets. 



MCZ ERNST MAYR LIBRARY 



3 2044 118 667 955 



