The Nautilus. 



Vol. IV. MAY, 1890. No. 1 . 



Editorial. 



With this luimber of the Xautilvs we call the attention of our 

 subscribers to a change in the proprietorship of the journal ; ]\Ir. 

 Averell, heretofore its business manager, having retired, and entire- 

 ly -withdrawn his interest in the paper. 



The editor has now associated with him, Mr. Charles W. Johx- 

 sox, acting curator of the Wagner Free Institute of Science, Phila- 

 delphia. To the majority of American conchologists Mr. Johnson 

 needs no introduction. It is a pleasure to the editor to be able to 

 announce that he has secured the cooperation of so efficient a col- 

 league. 



All communications of a business nature should be addressed to 

 Mr. Johnson. Contributions to the pages of the Nautilus may be 

 sent to either JNIr. Johnson or to the Editor, at the addresses given 

 on the title-page. 



After the first two numbers, the Nautilus will be issued on the 

 first of each month. It is our intention to insure the prompt receipt 

 of each number by our subscribers. 



It is the purpose of the proprietors to publish articles of interest 

 to beginners in the study as well as to experienced conchologists. 

 The next number will contain an illustrated paper of great interest 

 on Haliotis by Prof. Jo-siah Keep ; the continuation of Mr. 

 Carpenter's valuable notes on Ehode Island shells ; articles by Dr. 

 Sterki, ]Mr. Hera])hill, the Editor and others. 



