Ornithology 



The Classification of the Weaver-Birds. By James P. Chapin, 1917, 



Bulletin, XXXVII, Art. 9, pp. 243-280, Pis. vi-x, 10 text figures. 75c. 



Descriptions of New Birds from Santo Domingo and Remarks on Others in 

 the Brewster-Sanford Collection. By Frank M. Chapman, 1917, Bulle- 

 tin, XXXVII, Art. 12, pp. 327-334. 10c. 



Field Notes on Molothrus bonariensis and M. badius. By Leo E. Miller, 



1917, Bulletin, XXXVII, Art. 22, pp. 579-592. 15c. 



A New Albatross from the West Coast of South America. By Robert Cush- 

 man Murphy, 1917, Bulletin, XXXVII, Art. 35, pp. 861-864, 1 text 

 figure. 10c. 



A Study of the Atlantic Oceaniies. By Robert Cushman Murphy, 1918, 



Bulletin, XXXVIII, Art. 4, pp. 117-146, Pis. i-in, 7 text figures. 50c. 



The Geographical Distribution of Color and of Other Variable Characters 

 in the Genus Junca: a New Aspect of Specific and Subspecific Values. 

 By Jonathan Dwight, M.D., 1918, Bulletin, XXXVIII, Art. 9, pp. 269- 

 309, Pis. xi-xin, 5 maps. 75c. 



Descriptions of Proposed New Birds from Peru, Bolivia, Argentina, and 

 Chile. By Frank M. Chapman, 1919, Bulletin, XLI, Art. 5, pp. 

 323-333. 90c. 



Descriptions of Apparently New Birds from Bolivia, Brazil, and Venezuela. 



By Frank M. Chapman, 1921, Novitates, No. 2, pp. 1-8. 10c. 



Descriptions of Four Birds from the Belgian Congo. By James P. Chapin, 



1921, Novitates, No. 7, pp. 1-9. 15c. 

 A Revision of Ailapetes gutturalis with Descriptions of Three New Races. By 



Jonathan Dwight and Ludlow Griscom, 1921, Novitates, No. 16, pp, 1-4. 10c. 

 Notes on a New Ox-pecker and Other Little-known Birds of the Congo. By 



James P. Chapin, 1921, Novitates, No. 17, pp. 1-16. 20c. 



Descriptions of Proposed New Birds from Colombia, Ecuador, Peru, and 



Brazil. By Frank M. Chapman, 1921, Novitates, No. 18, pp. 1-12. 15c. 



Descriptions of Proposed New Birds from Central America, with Notes on 



Other Little-known Forms. By Waldron DeWitt Miller and Ludlow 



Griscom, 1921, Novitates, No. 25, pp. 1-13. 15c. 



A Review of the Diving Petrels. Contributions from the Brewster-Sanford 



Collection. By Robert Cushman Murphy and Francis Harper, 1921, 



Bulletin, XLIV, Art. 17, pp. 495-554, Pis. xx-xxiv, 7 text figures. $1.00 



Descriptions of Proposed New Birds from Brazil, Paraguay, and Argentina. 



By George K. Cherrie and (Mrs.) Elsie M. B. Reichenberger, 1921, 



Novitates, No. 27, pp. 1-6. . 10c. 



The Birds of The American Museum of Natural History's Asiatic ZoSlogical 



Expedition of 1916-1917. By Outram Bangs, 1921, Bulletin, XLIV, 



Art. XX, pp. 575-612. 40c. 



The Distribution of the Swallows of the Genus PygocheUdon. By Frank 



M. Chapman, 1922, Novitates, No. 30, pp. 1-15. 20c. 



Descriptions of Apparently New Birds from Colombia, Ecuador, and 



Argentina. By Frank M. Chapman, 1^22, Novitates, No. 31, pp. 1-8. 10c. 

 The Species and Geographic Races of Steganura. By Jame3 P. Chapin, 



1922, Novitates, No. 43, pp. 1-12. 15c. 

 Description of a New Race of the Lesser Black-backed Gull, from the 



Azores. By Jonathan Dwight, 1922, No. 44, pp. 1, 2. 10c. 



