1872.] BUSK ANIMAL-REMAINS AT ACTON AND TTJKNHAM GREEN. 469 



that the carcass to which they belonged had not been brought any 

 very great distance. c. One large portion of an antler, undoubtedly 

 of C. tarandus, indicates the coexistence of that species ; but as no 

 other portions of the skeleton have been discovered, this specimen 

 may have been brought down by the river from some distance. 



9. Ursus. — The only bone belonging to the Carnivora is the left 

 fifth metacarpal of a Bear of large size. The bone, which is quite 

 entire, is 3" -9 long, its least circumference 2" -5 (perimetral index 

 •641). It would seem to belong to U. ferox priseus, as it is too 

 slender for U. speheus, and altogether too large for U. arctos. No 

 teeth or other portions of the skeleton of Ut^sus have as yet been 

 met with ; still, as the present specimen is entire and unworn, it 

 would seem that it could not have been carried very far. 



10. Elephas primigenius. — The Mammoth is distinctly represented 

 by portions of three upper molars and a fragment of a dorsal spine. 

 But besides these there are several other fragments of bone which, 

 from their thickness and texture, not improbably belong to this 

 species. 



1. The fragment of dorsal spine betokens an individual of large 

 size. It is recently fractured at one end ; but the other is much 

 rounded by attrition. The specimen was found in the Mid-terrace 

 Gravel at Acton Green. 



2. A second specimen, also found at Acton Green, in the Mid- 

 terrace Gravel, at a depth of 12 feet, in March 1870, is somewhat 

 remarkable on account of its mineral condition, which is-very dif- 

 ferent from that of the two other teeth to be described below. The 

 present is a fragment, measuring 3-8 x 2*4, of a right lower m 1. 

 It presents the worn surfaces of six plates and of half a plate at 

 each end. Eive entire plates occupy a length of 2"*5 ; consequently 

 they are of unusual thickness for E. primigenius, although, from 

 the form and thickness of the enamel ridges, there can be little or 

 no doubt of the tooth belonging to that species. Under other cir- 

 cumstances, however, it might equally belong to E. indicus. The 

 tooth is very heavy and dense and hard, the dentine quite black, 

 and the osteine deeply mottled with manganous oxide. 



3. Of the other two teeth, one is marked as having been found 

 in the High- terrace Gravel at Acton, as recorded in Col. Lane Fox's 

 paper ; and although in colour and general condition it exactly re- 

 sembles the tooth next to be noticed, which was obtained from the 

 Mid-terrace Gravel at Turnham Green, there is nothing, from this 

 circumstance alone, absolutely opposed to its having been derived 

 from the High-terrace Gravel, which in general characters does not 

 appear to differ very materially from the Mid-terrace deposit. 

 Nevertheless it will perhaps be more prudent not to assume posi- 

 tively that there has been no confusion in the account given to Col. 

 Lane Fox by the finders. 



The specimen is a much-broken portion of an upper molar of the 

 right side, about 5"-5 long, presenting the remains of twelve or 

 thirteen plates, which are, so far as can be judged, unworn. They 

 are also very easily separable, and incomplete at the base. And as 



