found near Rochester. 25 



continuous over the summit of the North Downs ; and though 

 the traces of the strata themselves may be lost, we may never- 

 theless expect to find occasionally amongst alluvia, the more 

 durable of their organic contents ; and in this manner the cir- 

 cumstance of the remains of the Mammoth under notice, being 

 found in their late repository, admits of a solution without op- 

 posing the conclusions induced, by more general views of the 

 subject. 



Accompanying these observations is a representation of one of 

 the teeth referred to, engraved from a very accurate drawing by 

 Mr. Outram, of the Honourable East India Company's engineers. 

 The tooth consists of twenty-one laminae, but has evidently lost- 

 the most anterior one. The dimensions in inches are as follow : 



Laminae, length of the largest *8.25 



-total number 21 



-in use t9 or 10 



Length of tooth 17 



Length in use 7.5 or 8.25 



Depth 7,57 



Breadth 35 



Twenty-four or twenty-five laminae seem to be the number 

 belonging to a tooth at its maximum size ; it is therefore proba- 

 ble the Rochester tooth was past its maximum, and at the 

 defunction of the animal was so far protuded and abrazed, as to 

 have lost three of the lamina?. But as these dimensions are ex- 

 clusive of any osseous covering to the enamel, it may safely 

 be pronounced to have belonged to one of the largest Mammoths 

 of which remains have yet been found. 



No appearance of any portion of the bone of the tooth is to 

 be seen, but its place is supplied by a very fine white earthy 

 substance, chiefly carbonate of lime which is possibly derived 



» The length of this lamina is greater than the depth of the tooth from the 

 diagonal direction of its position. 



t From the mutibition of the tenth lamina, it is uncertiiin whether it has 

 been in use or not ; and therefore, whetiier the dimensions in tlie fifth coluum 

 siiould be 7..'5 or 8.25. 



