INTERNATIONAL 



Scientists' Directory, 



Boston, 



A 



1881, 



Dear Sir: 



Below ive give a slip from the last edition of the 

 Jfativrculists' Directory. You will confer a great favor by 

 correcting the same for the neiv LXTEB.YATIOXJ L 

 SCIENTISTS' DIRECTORY now in preparation. (Eull 

 particulars given in accompanying circular letter.) 



S. E. CASSIJSrO. 



Slip. 



^AXN, Geo., JVI. D., 3003 Locust St., 



Louis. Bot. 3l€t. 



I a^ree to tahe cop of the International Scien- 

 tists' Directory ivhen published, at $2. each. 



(The price bound in cloth, $2.50. Bound in paper, $2.00 ) 

 le editio Y'ill be limhed ^^^j^tly^jo ^he^ number ^of %toney\ 

 kh the'blanTo; whm ?he d" reTory fs feldy . at option of tTe subscriber. " In every 



Please return this blank to 



S. E. CASSINO, 299 Washington St., 



Boston, Mass., U. S. A. 



