The American Naturalist 



reprints will be supplied at cost. 



dollars a year. Foreign postage is fifty cents and 

 five cents additional. The charge for single copies is 

 Four Dollars for a page. 



THE SCIENCE PRESS 



Garrison, N. Y. 



NEW YORK : Sub-Station 84 



FOR SALE 



ARCTIC, ICELAND and GREENLAND 

 BIRDS' SKINS, 



WANTED TO PURCHASE 



F BIRDS OF AMERICA by J. J. Audu 



G. DINESEN, bm 



, binding and dates of 

 F. C. HARRIS, 



Box 2244 Boston 



For Sale Entire 



Marine Biological Laboratory 



Wood. Hole, Mass. 



INVESTIGATION 



An important collection of Indian Birds' 

 Eggs, containing approximately 3,300 



specimens of about 620 species, and in- »wc 

 eluding among other varieties the Green- °* r ' 

 ish Willow Warbler (Aeanthopneuste instruction Co* 

 viridanus), Red-browed Finch (Calla- | m, itoAu*™tu, JS, 

 canthis burtoni), Tibetan Sand-Grouse 3914 5* 



(Syrrhaptes tibetanus), Spotted Sand- vS 

 Grouse (Pteroclurus senegallus), Ibis- *5o 

 bill (Ibidorhynchus struthersi), White- *** 

 bellied Minivet (Pericrocotus erythro- D£ ^ 

 pygius), Bearded Vulture (Gypaetus o P ™ t 

 barbatus), numerous Cuckoos with their 

 hosts, etc., etc. 



Particulars and full list may be had 

 from 



W. F. H. ROSENBERG 



57 Haverstock HiU London, N. W. J?' 1 * 



PhQoaotihic&l Aspects of Biology 

 and Allied Sciences is also offered. 

 Animals and tf"***^ Stages! 



