Feb. 4, 1886] 



NA TURE 



323 



more ludicrously exact sometimes by the sharply-pointed, 

 flag-like leaves of a kind of squill — a liliaceous plant — 

 which frequently crowned the summit of the ant-hill or 

 grew at its base, thus suggesting the horns of an antelope 

 either with the head erect or browsing low down. The 

 assimilation cannot have been fancied on my part, for it 

 deceived even the sharp eyes of my men ; and again and 

 again a [hartebeest would start into motion at twenty 



yards' distance and gallop off, while I was patiently stalk- 

 ing an ant-hill, and crawling on my stomach through 

 thorns and aloes, only to find the supposed antelope an 

 irregular mass of red clay" (p. 65). 



Amongst the valuable animal specimens secured by our 

 naturalist was one of the new and beautiful species of 

 Colobus (C gucresa, Riipp., var. caudatus, var. nov., 

 Fig. 4) first seen and described by Mr. Thomson, which 



I from above Moshi (" P.-iln 



frequents the base of Kilima-Njaro, and is apparently 

 restricted to that region. Mr. Oldfield Thomas, who con- 

 tributes an important paper on the mammals obtained 

 during the expedition, tells us that it is " characterised by 

 having the white brush of the tail very much larger and 

 finer than is the case in the true Abyssinian C gucreza. 

 . . . The hairs of the white body-mantle, entirely cover 

 the black at the base of the tail, the white of the 



latter and of the mantle being quite continuous " 



(p. 3S8). 



Besides this paper by Mr. Thomas the work is enriched 

 with several others by specialists, such as Prof. Bonney, 

 who deals with a collection of rocks (mainly igneous) 

 from the higher regions of Kilima-Njaro ; Prof Oliver 

 and Mr. J. G. Baker, to whom botanists will be grateful 

 for a careful enumeration of all the plants collected during 



