246 PHILOSOPHICAL TRANSACTIONS. [aNNO ] 72S. 



bably some of his elephants died there, of which those teeth were the re- 

 mains. 



N° 764 of Sir Hans Slone's collection, is one of the grinders of an elepliant, 

 which was likewise found in Northamptonshire ; which Mr. Morton thus de- 

 scribes. " Northwards, says he, about 30 yards from this place, where the 

 abovementioned dens exertus was found, was also dug up one of the inolares, 

 or grinder-teeth of an elephant, perhaps of the same that the tusk belonged to. 

 The grinder whole, or however all the pieces of it I could find (for it was broken 

 into 3 or 4 in taking it up) being put together as they grew, exhibit 13 or 14 

 parallel lamellae ; each of which extends the whole length, and almost the 

 whole thickness of the tooth ; and of these it is chiefly composed. But in a 

 live, or perfect tooth, these lamellae do not appear so plainly, being in part 

 crusted over with a white osseous crust, or integument, which in this fossil 

 tooth is almost wholly perished and gone, so that the lamellas are more exposed 

 to view. From the root to the top in the longest part, which is near the mid- 

 dle, it is just 7 inches long. Its thickness in the thickest part of the root, 

 which is also near the middle, is near 3 inches, and it is a little above 8 inches 

 broad : measuring it this way, we take in the whole pile of the lamellae. None 

 of the lamellae are contiguous ; there interposes between them a thinner plate 

 of a whiter colour, and a laxer texture. Three or four of the outmost at one 

 end of the pile, appear undulated at the top of the tooth, are near as broad at 

 top as at the root, and have a blunt ending. The rest of them are gradually 

 contracted to a point, and also bend a little over each other. And each of them, 

 as it approaches the top, divides, as it were, into several smaller teeth; and 

 with these the lamellae of this figure terminate. The above-described tooth was 

 lodged at almost 12 feet depth in earth. Above it were the following strata : 

 l.The top earth, a blackish, clayey soil, about ]6 inches. 1. Sandy clay in- 

 termixed with pebbles, 5 feet. 3. A blackish sand, with small white stones in 

 it, 1 foot. 4. A loamy, softer sort of gravel, 1 foot. 5. A sharper gravel, 

 about 2 feet. The tooth was found a foot and a half deep in this stratum of 

 gravel. Below this 5th stratum there was a blue clay." It is very visible, that 

 this grinder also, by lying in the earth, has undergone the same alteration as 

 the tusk above described, found in Bowdon-parva Field. 



N° 119 and 120, of Sir Hans Sloane's catalogue, are two pieces of another 

 large grinder, very probably of an elephant too, turned to a very hard, stony, 

 and almost metallic substance. 



N° 121 is a piece of the molaris, or grinder of an elephant, where the un- 

 dulated lamellae are set very close to each other. 



N° 122 is a piece of another grinder, perhaps of an elephant. It has very 



