1904.] ON THE ARTERIES OF THE BRAINS OF MAMMALS. 183 



'' ' Klip-haas ' ofHhe Dutch. 



" Frequents the kopjes and mountains, and is nearly always 

 seen among the thickest bushes and bigger I'ocks. The specimens 

 were mostly secured in the early morning while out feeding on 

 the more open places. The speed with which this animal can 

 get over the rocks and boulders must be seen to be believed." — 

 C. H. B. G. 



26. Procavia capensis Pallas. 



5 . 449. Klipfontein. 



" ' Dassie ' of the Dutch. 



" Although many signs of this animal were seen on the krantzes, 

 very few of them were actually observed and seldom in the same 

 place twice. This may possibly be owing to the previous dry 

 season, which kept them constantly on the move to find food, 

 consequently they wei-e very much scattered and extremely 

 wild."— 0. H. B. G. 



27. Raphicerus campestris Thunb. 



2- 502. Klipfontein. 

 2 . 549, Port Nolloth. 



28. Oreotragus oreotragus Zimm. 

 (5 . 495. Klipfontein. 



EXPLANATION OF PLATE VI. 



Fig. 1. Serpestes rtiddi, p. 175. 

 2. JBathi/ergus janetta, p. 180. 



2. On the Arteries of the Base of the Brain in certain 

 Mammals. By Frank E. BeddarDj F.R.S., Prosector 

 to the Society. 



[Received January 12, 1904.] 



(Text-figures 16-22,) 



There has recently been published a comprehensive memoir 

 upon this subject by Dr, Tandler*, in which previous observations, 

 referring for the most part to single types, are included. Before 

 becoming acquainted with this memoir, I had caused a number 

 of injections of the brain of variovis mammals to be made, with the 

 view of investigating the subject. I find on examination of my 

 matei'ial and notes that I have something to add to the facts and 

 conclusions made known in the memoir of Dr, Tandler ; for I have 

 had the opportvmity of studying some genera which that anatomist 

 had not at his disposal, and certain parts of the arterial system to 

 which it was not his object to pay special attention. 



* "Zur vergleiclienden Anatomic dcr Kopfarterien bei den Mammalia," Dent sclir. 

 Akad. Wiss. Wien, Bd. 67, 1899, p. 677. 



