41 



April 12, 1836. 



William Yarrell, Esq., in the Chair. 



Mr. Bennett directed the attention of the Meeting to a living* 

 specimen of the brush-tailed Kangaroo, Macropus penicillcdus, Gray, 

 vshich had recently been added to the Menagerie ; having been 

 piesented to the Society by Captain Deloitte, Corr. Menib. Z. S. 

 He remarked particularly on the peculiarity of its actions, as coni- 

 pared vvith those of the typical Kangaroos ; and especially on the 

 ease vvith vvhich it vaults from the ground to any slight ledge, on 

 which it remains perched, as it vvere, with its tail extended behind 

 it : the tail, in fact, appearing to be in no respect aiding in the pro- 

 gression of the animal, 



Referring to some observations vvhich he had made on the exhi- 

 bition of a skin of the šame species, at the Meeting of the Society 

 on January 13, 1835, (Proceedings, partiii. p. 1,) he stated it to be 

 his intention to reduce into order his various remarks on the subject, 

 and to accompany them by a figure of the animal taken from the 

 living specimen. 



Mr. OH'en read the foUovving notes of the morbid appearances ob- 

 served in the dissection of the specimen of the Chimpanzee, Simia 

 Troglodytes, Linn., vvhich lately died at the Gardens ; and respecting 

 the habits and faculties of vvhich some observations by Mr. Broderip 

 were read at the Meeting of the Society on October 27, 1835. (Pro- 

 ceedings, part iii. p. 160.) 



" Adhesions of the abdominal viscera to the ^jarieiei of the 

 cavity existed in many parts, but more especially of the ascending 

 colon and ccecum on the right side. On separating these adhesiona 

 a purulent cavity was exposed, with vvhich the ileum, near its ter- 

 niination, communicated by an ulcerated aperture about half an 

 inch in diameter. An abscess also existed between the lower end of 

 tlie ccecum and the peritoneum, and the whole of the fiindus of the 

 ccecum was destroyed by ulceration, together vvith part of the ver- 

 raiform process ; the remainder of vvhich vvas much contracted and 

 shrivelled, and vvas found adhering to the sound part of the ccecum. 

 The efficiency of the adhesive process in repairing, or at least pre- 

 venting, the immediate evil conseąuences of a solution of continuity in 

 the intestinal parietės, vvas remarkably exemplified in this instance ; 

 for notvvithstanding the extent to vvhich this had taken place, not 

 a particle of the alimentary matters had escaped into the generai 

 cavity of the abdomen, nor vvas the mischief suspected until the ad- 

 hesions viere separated. 



" On laying open the ileum it appeared that the original seat of 

 the ulcer had been a chister of the aggregated intestinal glands ; 



No. XL. — Proceedikcs of the Zoological Society. 



