Mr King's description of a New Sqfety-Tuhe. 61 



called Guenon a face pourpre by BufFon ; but the name is 

 highly improper, as the purple of the face is merely accidental, 

 and the common colour of the face, hands, and ears, or naked 

 parts is black. The proper distinguishing mark of the spe- 

 cies is a triangular white beard, pointed towards the chin, and 

 turned up over each eye towards the temple. So far as I ob* 

 served, the animal has no cheek-pouches, at least I have seen 

 it often eating, without putting anything into its pouches, if 

 it has any. The crown of the head is brown ; the remainder 

 of the hair is grey, consisting of black and white, but in general 

 the black is by far the most predominant, except on the rump, 

 buttocks, and tail, which are whitish. The tail is consider- 

 ably longer than the body and head, or than the liinder legs. 

 It is cylindrical, and, although the hair towards the point is 

 very long, it is so thin that it does not form a tuft, like that 

 at the end of a cow's tail, although such is said to be the case 

 in the animal described by Buffon. The place, however^ 

 where the animal is found, and the name, leave no room to 

 doubt that the animals are the same. It is a mild inoffensive 

 creature, not at all so restless and mischievous as monkies usu- 

 ally are ; and more resembles in its manners the black long- 

 armed ape. It is very impatient of cold. ocl 



Point de Galle, ,^ ^^^ 



April 3, 1815. 11^^ 



Art. X. — Desc?iption of a New Safety-Tube for Chemical 

 Apparatus, By James King, Esq. Communicated by 

 the Author. 



Sib, 

 The straight safety-tube commonly employed in Woolf's ap- 

 paratus, and others of that description, cannot be convenient- 

 ly ground air-tight into the bottle, and must necessarily be 

 luted ; and when considerable pressure is required, its length 

 must be such as to render it very unwieldy. Besides, when it 

 is placed into the first bottle of the series which is only in- 

 tended to collect the condensable part of the product, a quan- 

 tity of liquid must also be introduced y which, being in the 



