The American Naturalist 



MSS intended for publication and books, etc., intended for review shouf 

 sent to the Editor of THE AMERICAN NATURALIST, Garrison-on-Hudson, New Y 



Short articles containing summaries of research work bearing on 

 problems of organic evof~*'~ 

 in publication. 



Further n r e eprint8 e wH| e be 



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THE SCIENCE PRESS 

 Lancaster, Pa. Garrison, N. Y. 



NEW YORK : Sub-Station 84 



FOR SALE 



ARCTIC, ICELAND and GREENLAND 

 BIRDS' SKINS, 



G. DINESEN, 



JAPAN NATURAL HISTORY SPECIMENS 



Perfeot Condition and Lowest Prices. 

 Specialty: Bird Skins, Oology, Entomology, Marine 



T. FUKAI, Naturalist, 



For Sale Entire 



An important collection of Indian Birds' 

 Eggs, containing approximately 3,300 

 specimens of about 620 species, and in- 

 cluding among other varieties the Green- 

 ish Willow Warbler (Acanthopneuste 

 viridanus), Red-browed Finch (Calla- 

 canthis burtoni), Tibetan Sand-Grouse 

 (Syrrhaptes tibetanus), Spotted Sand- 

 Grouse (Pteroclurus senegallus), Ibis- 

 bill (Ibidorhynchus struthersi), White- 

 bellied Mini vet (Pericrocotus erythro- 

 pygius), Bearded Vulture (Gypaetus 

 barbatus), numerous Cuckoos with their 

 hosts, etc., etc. 



Particulars and full list may be 

 from 



W. F. H. ROSENBERG 



57 Haverstock Hill London, N. W. 



Marine Biological Laboratory 



Woods Hole, Mass. 

 INVESTIGATION 



