214 
tip, 2-|-; from the tip to the posterior edge of the plate on the fore¬ 
head, 3 ; wing, 8|-; tail, 3 \; tarsi, 3 \; middle toe, 3 ; nail, ; 
liind-toe, -J-; nail, f. 
I cannot conclude these remarks without bearing testimony to the 
very great importance of the results wdiich have attended the re¬ 
searches of Mr. Walter Mantell in the various departments of science 
to which he has turned the attention of his cultivated, intelligent and 
inquiring mind, nor without expressing a hope that he may yet be 
enabled to obtain some particulars as to the history of this and the 
other remarkable birds of the country in which he is resident. 
November 26, 1850. 
It. H. Solly, Esq., F.R.S., in the Chair. 
The following papers were read :— 
1. List of Birds procured in Kordofan by Mr. J. Pethe- 
rick. With notes by H. E. Strickland, M.A., F.G.S. 
(Aves, PL XXII. XXIII. XXIV.) 
[Species not enumerated in Riippell’s ‘SystematischeUebersicht der 
Vogel Nord-Ost-Afrika’s,’ 8vo, Frankfurt a. M. 1845, are marked N. 
Species common to the West Coast of Africa are marked W. These 
are chiefly determined by reference to Dr. Hartlaub’s valuable list of 
West African birds in the c Verzeichniss der offentlichen u. Privat- 
Vorlesungen am Hamburgischen Gymnasium,’ 4to, Hamburg, 1850.] 
1. Neophron percnopterus. 
2. Vultur occipitalis. 
3. Otogyps auricnlaris. 
4. Buteo rufipennis, Strickland, n. s. Upper parts cinereo- 
fuscous, nearly black on the crown ; feathers of back and wing-covers 
with black shafts; cheeks cinereous, a black line below them from 
angle of mouth ; chin whitish, with a medial dark streak ; breast and 
sides ferruginous brown, with a conspicuous medial black streak one- 
sixteenth of an inch wide on each feather; belly, thighs and vent 
plain fulvous; primaries and secondaries bright ferruginous, tipped 
for about an inch and a half with black, and from three to five distant 
transverse black bands on the inner web ; tail cinereo-fuscous, with 
five dark fuscous bands, each about a quarter of an inch wide, the 
distal one about half an inch, beyond which the extremity is cinereo- 
fuscous and the extreme tip white; cere and legs yellowish; beak 
and claws black. 
Length 17 inches ; wing, 12|; medial rectrices, 7\ ; external 
ditto, 7 \; tarsus, 2^. 
Hah. Kordofan. (Aves, PI. XXII.) 
