PROCEEDINGS 
SCIENTIFIC MEETINGS 
OF THE 
ZOOLOGICAL SOCIETY OF LONDON. 
Prof. Flower, C.B., LL.D., F.R.S., President, in the Chair. 
The Secretary read the following report on the additions to the 
Society’s Menagerie during the month of December 1888 :— 
The total number of registered additions to the Society’s Mena- 
gerie during the month of December was 74, of which 50 were by 
presentation, 2 by birth, 8 by purchase, and 14 on deposit. The 
total number of departures during the same period, by death and 
removals, was 85. 
Among these I may call special attention to the young Chimpanzee 
purchased of Mr. Cross of Liverpool, December 6. This is appa- 
rently of the same species as the specimen purchased October 24, 
1883 (see P. Z.S. 1883, p. 464, and 1885, p. 673, pl. xli.), which is 
still living in the Society’s Gardens, and is, so far as can be at pre- 
sent ascertained, referable to the Bald-headed Chimpanzee, Anthropo- 
pithecus calvus (Du Chaillu) *. 
Mr. Bartlett, in his communication to the Society on this subject 
(above referred to), has pointed out the distinctions between this 
Chimpanzee and the ordinary form (A. troglodytes). 
The receipt of a second specimen is of great interest as tending 
to confirm the validity of the species. A ‘specimen of the common 
Chimpanzee of about the same age being also in the Society’s col- 
lection at the present time, it is easy to make a comparison between 
the two forms. 
1 See on this subject ‘“ The Bald-headed Chimpanzee, ” in ‘Nature,’ vol. xxxix. 
p. 254 (Jan. 10th, 1889). 
Proc. Zoo. Soc.—1889, No. I. ] 
