

Purchasers of Minerals * 
Will find our stock the largest, most varied, and in every way the best in the 
United States. Our 100-page illustrated catalogue indexes every variety, and 
gives valuable scientific papers, etc. Price, 15c., or handsomely bound, 25c. 
25,000 miles of travel by members of our firm are planned for the summer 
of 'g1, exclusively for the purpose of securing minerals, 
WRITE TO US FOR WHATEVER YOU WANT. 
Geo. L - English & Co. zas avo qas Braai 
EBERALOGISTS. EW YORK. 

(COVERS FOR THE NATURALIST. 

Handsomely stamped cloth covers for use in binding THE 
Natura.ist have been prepared by the publishers, and will be 
sent, postage paid, on receipt of price, 50 cents per volume. 

COVERS FOR VOLUME XXIII. (1889) NOW READY. 

_ FERRIS BROS, PUBLISHERS, 
S w. cor. sxTH AND ARCH STREETS, | PHILADELPHIA. 




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