Physics and Chemistry. 301 
bth. It is possible that the osseous protuberances on the skull 
did not all support true horns. 
6th. There were five toes in the manus, with metacarpals 
moderately elongated. 
Tth. There were but four toes in the pes, with short meta- 
tarsals, 
8th. The characters of the order include marked perisso- 
dactyl, artiodactyl, and proboscidean features, the last being 
apparently the least developed. 
9th. The geological horizon of all the known animals of this 
group is Upper Kocene. 
A new and well marked species of Dinoceras is represented 
by a nearly perfect skull with the lower jaw entire, and by 
various other parts of the skeleton. It differs especially from 
D. mirabilis akersh: the type species, in the greater proportion- 
ate width of the skull, the shorter and more massive posterior 
horn-cores, and the more compressed and prominent nasal cones. 
the occipital condyles was 7:8 inches, and across the zygomatic 
arches 185 inches. The lower jaw measured 11°6 inches 
Fort Bridger, Sept. 1, 1873. 
SCIENTIFIC INTELLIGENCE. 
I. Puysics AND CHEMISTRY. 
1. On the Measure of Work in the Theory of Energy: 
By 
: BERT Moon, M.A., Honorary Fellow of Queen’s College, Cam- 
Tidge.—Professor Maxwell gives the following definition and 
: boys : 
Tesisting force and the distance throughout which that force 138 
overcome,” ( 
Will be 
the resistance which the body offers to any change being effected 
. 
