THE OOLOGIST. 



179 



EVER PUBLSSHED. 

 It gives the LIFE HBSTORtES 



jFOURo?FiVE NORTH AMERiCAM BIRDS 1 



(evepymonth . TME EG-G- of each is , 

 ((shown FULLSEZE and many nests. 

 It also contains short interesting 



TORIES ABOUT B^DS. 





Aiii?rEcop^ 



•AYEAR--tS 



Sta.A. WORCESTER, MASS; 



COLLECTOR'S TOOL. 



A POCKET INSTRUMENTFORTREECOLLEGTING- 

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building full. New cat., No. 10, 40 pages, finely 



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PUBLICATIONS OF 

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West American Scientist, sample, 



\\ 'West American Mollusca, vol. I, $i.oo 



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"You might as well be out of the Bird 'World al- 

 together as go without THE OSPREY." 



a:"HR OBPRB.Y, 



An Illustrated Monthly Magazine of 

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Edited by Theodore Gill, in Co-op- 

 eration with Robert Ridgway, L. 

 Stejneger, C. W. Richmond and 

 Other EminentOrnithoIogists. 



The Ospkey does not keep a poet, 

 but it has an office cat who can catch 

 more birds than all the poets put to- 

 gether. If you don't believe this, read 

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 you like a beautifully printed and pro- 

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The Condor for igoi. 



This popular Californian, illustrated maga- 

 zine of ornithology begins its third volume 

 with 1901, and its issues range from 24 to 32 

 pages in size. It controls the output of West- 

 ern material, and prints the most interesting 

 and valuable articles to be found in any "bird" 

 journal. New features have been introduced 

 for 1901, which will serve to make THE CON- 



The March (1901) number is one of extreme 

 interest, containing among other things a 

 charming article on the nesting of the Golden 

 Eagle by R. H. Beck, illustrated with three full 

 page plates depicting nests in various rugged 

 situations Mr. E. H. Skinner contributes a 

 valuable and most interesting illustrated ar- 

 ticle on the nesting habits of Giraud's Fly- 

 catcher in its Mexican home, and other inter- 

 esting papers are presented by Joseph Grin- 

 nell, A. W. Anthony, R. D. Lusk and other well 

 known contributors. A copy of this valuable 

 number will be sent for 20 cents in stamps. 



YEARLY SUBSCRIPTION, $1 ; VOL. XI CAN ALSO 

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The Cooper Ornithological Club also offers 

 for sale its new 80-page publication on "The 

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 postpaid. 



Address all orders for sample copies, sub- 

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