The American Naturalist 



Tiption price is four dollars a year. Foreign postage is fifty cents and 

 _ _Jian postage twenty-five cents additional. The charge for single copies is 

 forty cents. The advertising rates are Four Dollars for a page. 



THE SCIENCE PRESS 

 Lancaster, Pa. Garrison, N. Y. 



NEW YORK : Sub-Station 84 



FOR SALE 



ARCTIC, ICELAND and GREENLAND 

 BIRDS' SKINS, 



WANTED TO PURCHASE 



a set of BIRDS OF AMERICA by J. J. Audubon, 

 7 or 8 volumes, please report, stating cash price, stat- 



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 senegaliu>. , Lbis- 

 bill (Ibidorhynchus struthersi), W T hite- 

 bellied Minivet (Pericrocotus erythro- 

 pygius), Bearded Vulture (Gypaetus 

 barbatus), numerous Cuckoos with their 

 hosts, etc., etc. 



Particulars and full list may be had 

 from 



W. F. H. ROSENBERG 



57 Haverstock Hill London, N. W. 



Marine Biological Laboratory 



Woods Hole, Mass. 



INSTRUCTION Co t ^S^S» 

 Ecology of Mlnne Strand 



