IN ORDER TO OBTAIN THE 



New York, 



ji East loih St. 



Chicago, 



1211 Masonic TeTiple. 



BEST RESULTS m making BIRD PHOTOS 



YOU MUST USE THE 



CRAMER CROWN PLATES 



Which are especially adapted for this class of work, and are 

 used exclusively by the publishers of AMERICAN ORNITH- 

 OLOGY. 



Full descriptive manual sent free to any address upon 

 application, provided AMERICAN ORNITHOLOGY is mentioned. 



G. CRAMER DRY PLATE CO. 1 



ST. LOUIS, MO. 



w 



^'4 



f^ 





0^» 



San Fr .ncisco, vV 



819 Market S:- ,t'S, 



Field Gla,4:^e4: ^or ^ird Sltidy. 



These Glasses are well made and espec- 

 ially adapted for the use of the bird stu- 

 dent as they give about twice the field vision 

 of ordinary ones and magnify nearly four di- 

 ameters. The bird in ihe small circle below 

 is as you would see it with the eye, anJ 

 in the large circle as see-i through these 

 glasses. 



These glasses in a neat, silk-lined 

 leatiier case, with strap, will be sent to 

 any of our readers for 



$5.00 A PAIR PREPAID. 



WE WILL SEND YOU THESE PREPAID AS A 

 PREMIUM FOR 10 NEW SUBSCRIBiRS. 



CHAS. K. REEO,WORCESTER, MASS. 



