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at Florence, it appears that there exists, in that cabinet, not only two of 

 the molar teeth of the hippopotamus, but a fragment also of one of the 

 tusks, or canine teeth of the lower jaw. Teeth of the hippopotamus, of 

 different kinds, it appears, have been found scattered in several parts of 

 the upper Vale of Arno. 



Remains of the hippopotamus have been found, I am informed, in 

 some parts of Gloucestershire. Mr. Trimmer has kindly communicated 

 to me the information, that the remains of these animals are found in the 

 stratum of blue clay at Brentford; and has also kindly communicated the 

 following account of the strata, as they there occur. The first stratum 

 is nine feet of sandy loam, or common brick earth, in which no fossils 

 are found. 2d. Seven feet of gravelly sand, becoming so coarse, as to 

 deserve to be called sandy gravel. At the bottom of this stratum are 

 found the remains of hippopotami and of elephants; but they are not 

 found in those parts to which the next stratum does not extend : to 

 which, therefore, they may be more properly considered as belonging. 

 3. From one foot to nine, of an earth highly calcareous, in which are 

 found the horns, bones, and teeth of deer, with many small shells. 4. A 

 few feet of gravel, with water. 5. Two hundred feet of blue clay, in 

 which are found pyritified fruits and wood, with marine fossils, particu- 

 larly nautili, which are found at all depths in this stratum. 



In my visits to Walton, in Essex, I have been successful in obtaining 

 some remains of this animal. The most interesting of these specimens 

 are 



1. An incisor tooth of the right side of the lower jaw. This tooth has 

 lost much of its enamel, but is otherwise in good preservation, possessing 

 all its characteristic markings. It measures fifteen inches and a half in 

 length, and nine inches in circumference towards its base, and is of course 

 too large to be figured in these plates. 



2. The point of an inferior canine tooth or tusk, measuring full nine 

 inches in circumference, and having seven inches in length of triturating 

 surface. From the great size of this tooth, it is very likely to have 



