THE NAUTILUS. 



Ill 



NOW READY 



N ew Shell Catalogue, 



172 Pages. 



2O5 Illustrations. 



TO those who are familiar with the previous editions of our ' ' Catalogue 

 o/Mollusca, ' it is sufficient to say that the one just completed retains 

 the general plan and all the best features of the preceding, but greatly 

 surpasses it in size, in convenience of arrangements, and in the copious- 

 ness and artistic character of its illustrations. 



But to all who are lovers and students of Natural History we can say 

 that while this catalogue represents the immense series of shells which 

 we carry in stock and the current prices for them, it is far from being a 

 mere price-list. In its one hundred and fifty-six pages (exclusive of 

 index, etc. ) is to be found a mass of valuable, reliable, and up-to-date 

 information that no text-book of Conchology affords. Extensive des- 

 criptions of the larger groups of Mollusca, and condensed but ample 

 descriptions of families, orders, and suborders, carefully revised and in 

 accordance with established classifications, make it a valuable book of 

 reference. The alphabetical arrangement of the species under each 

 genus, the concise method of indicating their subgeneric and sectional 

 affinities, the systematic sequence of families and genera, and above all 

 the completeness of our stock represented therein, fit it for a convenient 

 check-list and guide in arranging collections. Interesting notes and 

 remarks liberally interspersed, relieve from monotony ; and the hand- 

 some and accurate illustrations which ornament each page, give beauty 

 and finish, as well as aid the amateur. The Index contains the English 

 meanings of over 1100 difficult Greek and Latin compounds, the names 

 of the genera and subgenera listed in the catalogue. 



The price is 40 cents post-paid. 



WRITE FOR CIRCULARS, ETC. 



Ward's natural Science Esiamisiunent. 



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



