THE NAUTILUS. 



Ill 



FINE 



SHELLS. 



FOR ILLUSTRATED DESCRIPTIVE 



CATALOGUE OF MOLLUSCA, 



New Edition, 170 pages, over 200 Illustrations. 



Just Received : A^shipment of fine shells of Argonauta argo 

 attaining the'iemarkable size of 8 to 10^ inches. Also 

 several fine specimens of Scalaria pretiosa. Write for 

 prices; also for list of American Unionidce. 



laif s natural Science EstaDlislunent, 



18 to 28 COLLEGE AYE., ROCHESTER, N. Y. 



