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Ridgway, Robert. Further Notes on the Genus Xipkocolaptes of Les- 

 son. (Proc. U. S. Nat. Mus. XIII, 1S90, pp. 47 48.) 



Shallow. Herman. Neue Beitrage zur Vogelfauna von Brandenburg. 

 (Journ. fur Orn. .Jan. 1S90.) 



Shufeldt, R. W. Contributions to the Comparative Osteology of Arctic 

 and Sub-Arctic Water Birds. Part VII. (Journ. Anat. & Phys. XXIV, 

 1890. ) 



Smith, II. M. On the Disappearance of the Dickcisscl (Spiza ameri- 

 e.iuu) from the District of Columbia. (Proc. U. S. Nat. Mus. XIII, pp. 

 171, 172.) 



Stone, Witmer. Birds collected in Yucatan and Southern Mexico, on 

 the Expedition from the Academy of Natural Sciences of Philadelphia, 

 Feb. -May, 1S90. (Proc. Acad. Nat. Sci., Phila. 1S90, pp. 201-218.) 



Torrey, Bradford. Das Briillen der amerikanischen Rohrdommel 

 (Botaurus lentiginosus Steph.). (Orn. Monatsschrift Deutsch. Ver. z. 

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Townsend, Charles H. Birds from the Coasts of Western North 

 America and adjoining Islands, collected in 18SS-S9, with descriptions of 

 New Species. (Proc. U. S. Nat. Mus., XIII, pp. 131-142.) 



American Field, XXXIII, Nos. 25, 26. XXXIV, Nos. 1-10. 



American Fish and Game Warden and Sportsman's Journal, Vol. I, 

 No. 2, Sept., 1890. 



American Journ. Sci., July-Sept., 1890. 



American Naturalist, Dec, 1S89, June, July, August, 1S90. 



Canadian Record of Science, IV, No. 3, July, 1S90. 



Forest and Stream, XXXIV, Nos. 22-26, XXXV, Nos. 1-7, 1S90. 



Journal Cincinnati Soc. Nat. Hist., XIII, No. 2, July, 1890. 



Natural History Observer, I. Nos. 7-9, 1S90. 



Naturalist. Month. Journ. Nat. Hist, for North of England, Nos. 1S0- 

 182, 1S90. 



Ornithologisches Jahrbuch, I, Heft. 5-S, 1890. 



Ornithologist and Oologist, XV, June-August, 1S90. 



Ornithologists' and Oologists' Semi-Annual, II, No. 2, July, 1S90. 



Ottawa Naturalist, IV, July, August, Sept., 1890. 



Proceedings U. S. Nat. Mus., XII, pp. 497-686. XIII, pp, 1-130. 



Proceedings and Transactions of the Nat. Hist. Soc. Glasgow. Ill (new 

 series), pts. 1-2. 



West American Scientist, VII, Aug. 1890. 



Zoe, A Biological Journal, I, July, August, 1890. 



Zoologist, July-Sept., 1S90. 



