R. FRIEDLANDER & SOHN, 



(71 



i 



Berlin (Germany), N.W., Carlstrasse, 11, 



Have a large stock of Seconcl-Hand and New Books on 

 Natural Sciences ; Transactions, Periodicals, Monographs, 

 &c. 



Special Catalogues on every department of Descriptive 

 Natural History, as well as Natural Philosophy continu-^ 

 ally published, and sent gratis on application. 



265 classified Catalogues already published. 



ALL ORDERS PROMPTLY EXECUTED. 



Small parcels sent by post. 

 Large parcels shipped and for^warded in the 

 least expensive manner. 



I 



