40 / 
that these bones possessed an intermediate place between those of the 
hog and some of the other pachydermata on one side, and those of 
the ruminating animals on the other. On referring to the hind-foot 
of Anoplotherium commune, which he found to occupy a similar place 
between the pachydermata and ruminating animals, he was led to 
conclude that this fore-foot belonged to the same animal ; a conjecture 
in which he was completely confirmed, by the examination of another 
specimen. From the examination of other fragments, he had also the 
satisfaction of making out, that the bones of which they were com- 
posed had formed the fore-foot of Anoplotherium minus. 
He thus obtained the parts of at least three fore-feet, answering to 
the three hind-feet, and to the sorts of jaws before described. He 
was not so successful as to Anoplotherium minimum ; he, however, 
found sufficient reason for exultation, at having been able to carry his 
discoveries thus far, considering the difficulty of such investigations. 
The reader, he observes, may form an idea of it, when he learns, 
that it required six years to collect and combine the materials of the 
inquiry respecting the fore-feet of this genus. 
In the former part of this letter, you will have observed that two 
distinct sets of bones of the upper extremities were found, in one set 
of which the radius had two depressions, and the lower head of the 
humerus two corresponding eminences, and in the other the radius 
had three depressions, and the corresponding surface of the humerus 
three eminences. The former of these were determined to belong to 
the genus Palceotherium ; and a very careful investigation determined, 
that the latter set belonged to the genus Anoplotherium. No speci- 
mens of the ulna were found sufficiently perfect to allow of any satis- 
factory comparisons. 
The scapula, mentioned in the former part of this letter as belonging 
to the animals of this genus, possessed an acromion ; the spine pro- 
jecting more in the fore part than in the rest of its length, gives out 
an isolated production, which is also directed forwards. A curious 
