180 ANTHROPOLOGY. 
them. The genera Limnotherium, Thinolestes, and Telmatolestes, 
especially, have the principal parts of the skeleton much as in some 
of the Lemurs, the correspondence in many of the larger bones 
being very close. The anterior part of the lower jaws is similar to 
that of the Marmosets, but the angle is more produced downward, 
and much inflected. The teeth are more numerous than in any 
known Quadrumana. Some of the species have apparently forty 
teeth, arranged as follows: Incisors 3? canines 4, premolars and 
molars 4. A full description of these interesting remains, the first 
of the order detected in this country, will be given by the writer at 
an early day. —O. C. Marsu, in the American Journal of Science 
and Arts, Vol. IV, Nov., 1872. i 
Tue EoBAsILeEUS AGAIN. — I have just received a paper ‘* On the 
Gigantic Fossil Mammals of the Order Dinocerata, by Prof. O. C. 
Marsh,” which contains a formidable catalogue of errors which the 
author appears to suppose I have committed in describing animals 
of this type.. All this is explained by the fact that Prof. Marsh 
has never seen the genus Hobasileus Cope, and erroneously sup- 
poses it to resemble Uintatherium Leidy (Dinoceras Marsh.) 
The descriptions which I have given are correct, as will presently 
appear, as well as the fact that I have anticipated the Professor in 
the description of some of the allied species. — E. D. Core, Jan- 
uary 31st, 1873. 
ANTHROPOLOGY. 
Are Tuer Twisting Srones?— Associated with the various 
forms of stone implements and weapons found upon the surface of 
the fields in New Jersey are certain flat, quadrangular plates of 
_ stone of varying density, having one, two or more holes drilled 
through them. The outlines of these stone plates vary consider- 
ably, as may be seen by the reference to the drawings of seventeen 
specimens given by Squier and Davis, in “ Ancient Monuments of 
the Mississippi Valley,” p. 237, Fig. 136; and the position of the 
holes will also be seen to vary to a considerable extent. Of the 
two-holed specimens found by the writer, in the neighborhood of 
Trenton, N. J., the majority are about six inches in length by one 
and one-half inches in breadth; and the perforations are in most 
instances about an inch from either end. Such specimens as 
| = _ these are by many archeologists considered ‘twisting stones,” 
