OO Srvc?itk Congress of tke American Ornithologists' U»io?i. [January 



This was unanimously rejected by the Committee, as being 

 based on unstable characters, the same difference being ob- 

 servable, as an individual variation, in all the geographical 

 races of this species. ( Cf. Chapman, Auk, VII, Jan. 1S90, 91.) 



Geothlypis trichas roscoe (Aud.) Hasbrouck, Auk, VI, 

 April, 1S89, 167, 168. 



Rejected on the ground that Sylvia roscoe of Audubon is a 

 synonym of G. trichas (Linn.), the Mississippi valley bird be- 

 ing not sufficiently different from that of the Atlantic coast to 

 merit subspecific separation. The birds described by Mr. Has- 

 brouck belong to the Florida race, recently named by Mr. Chap- 

 man G. trichas ignota, Mr. Hasbrouck's error (for which he 

 was not wholly responsible) being in identifying his birds with 

 Sylvia roscoe And. 



Sialia mexicana anabelcc Anthony (Proc. Cal. Ac. Sci. 2d 

 ser. II, Oct., 1889, 79.) 



Characters deemed not sufficiently constant. 



Final action on the following was deferred, owing to lack 

 of evidence respecting their status. 



Tardus sequoiensis Belding, Proc. Cal. Ac. Sci. 2d ser. II, 

 June 1 1, 1889.) 



550 a. Ammodramus maritimus peninsula Allen, vs. Am- 

 modramus peninsula. ( Cf. Scott, Auk, VI, Oct., 1889,322.) 

 6ir.i. Prognc cryptoleuca Baird, vs. Prognc subis crypto- 

 leuca. {Cf. Scott, Auk, VI, Oct., 18S9, 325.) 



SEVENTH CONGRESS OF THE AMERICAN OR- 

 THOLOGISTS' UNION. 



The Seventh Congress of the American Ornithologists' 

 Union was held at the American Museum of Natural History, 

 New York City, Nov. 12-15, 1S89, the President in the Chair. 

 The meeting was attended by twenty Active Members and thirty- 

 two Associate Members. 



