THE OOLOGIST 



WANTED — Common sets of all kinds 

 ornithological magazines, bird skins. 

 "Will pay reasonable prices. What have 

 you? Will be in the Exchange market 

 in spring. JOHNSON A. NEFF, P. O. 

 Box 9, Marionville, Mo. 



I HAVE over 100 kinds of Fresh 

 Water mussels to sell or exchange for 

 same or skins or eggs. DR. W. S. 

 STRODE, Lewiston, 111. 



WANTED — To correspond with any 

 enthusiastic, but careful, students of 

 natural history that will exchange 

 ideas, experiences, etc. Friendly cor- 

 respondence solicited, especially with 

 Ornithologists; mammalogists; botan- 

 ists; and lepidopterists. THEODORE 

 R. GREER, Sheridan, 111. care F. R. A. 



FOR EXCHANGE — Birds, Skins and 

 mounted birds; also eggs in sets and 

 singles. Wanted, Bird skins and eggs 

 in sets. Send lists. JESSE T. CRAVEN, 

 811 Roosevelt Ave., Detroit, Mich. 



WILL BUY for cash or exchange 

 Printing Press outfit, Stereopticon, 

 Nature Specimens for sets witli or 

 without nests. Pistols. Skins, Ringtail 

 Cats. DEAN NAT. SCIENCE ESTB., 

 Alliance, Ohio. 



THE 



"Blue-Bird" 



Is now published monthly, the 

 year 'round, with new and inter- 

 esting departments, features and 

 contests, and 



At No Additional Cost to 

 Subscribers 



Official Organ of the Cleveland Bird 



Lovers' Association. 

 SEND STAMP FOR SAMPLE COPY 



Annual Subscription, $L50 



AGENTS WANTED EVERYWHEI-JK 



"THE BLUE-BIRD," 



1010 Euclid Ave. 



CLEVELAND, OHIO 



NEW SUBSCRIBERS 



This is an appeal to each one of our sul^scribers 

 to pick out some likely young- student of birds and 

 send him "The Oologist" for 1920. Surely our 

 older subscribers have interest enough in spread- 

 ing the influence of this Journal to do this. 



THE OOLOGIST. 



