Letters, Extracts, Notices, fyc. 
39 7 
67. Stone on Birds from Colombia. 
[On a Collection of Birds from the Vicinity of Bogota, with a Review 
of the South-American Species of Speotyto and Troglodytes . By Witmer 
Stone. Proc. Ac. Nat. Sci. Philad. 1899, p. 302.] 
The Academy of Natural Sciences has come into pos¬ 
session of a valuable collection of birds, made near Bogota 
and on the surrounding ranges by the late Dr. J. W. Det- 
wilier, with localities attached to the specimens. Mr. Stone 
now catalogues them, and reviews the S. American species 
of Speotyto and Troglodytes. Of the former genus he 
separates, as a new T subspecies, S. cunicularia tolimee ; and 
of the latter he describes, as a new species. Troglodytes 
columbce. 
68. Wither by on the Birds of South-western Spain. 
[Two Months on the Guadalquiver. By Harry F. Witherby, F.Z.S., 
M.B.O.U. Reprinted from ‘ Knowledge,’ 1899.] 
This is a pleasantly written description of a visit to ground 
which is already familiar to readers of this Journal; in fact 
there is now a sort of dragoman who provides boats, lodging, 
and all accessories for “ trippers ** to a district which was 
once “ wild ** Spain. This was an agreeable “ outing 99 ; but 
we are glad to find that Mr. Witherby has more serious 
ambitions, and that he has started for Khartoum and the 
country beyond on the White Nile, accompanied by two 
experienced collectors. 
XXI.— Letters, Extracts, Notices, fyc. 
We have received the following letters, addressed “ to the 
Editors of * The Ibis* **;— 
Sirs, —The January number of ‘ The Ibis* for the present 
year contains figures of two birds, recently described by 
Mr. Weld-Blundell and Lord Lovat in the Bull. B. O. C. 
vol. x. pp. xix, xx. I think I can easily show that neither 
of these birds can stand as a new species. 
The first bird figured is Oriolus mendiki W.-B. & L., 
SER. vii. — VOL. vi. 2 E 
