344 The Creodonta. 
were, as already stated, nearly identical in the two situations, with 
a preponderance of coloring in favor of the outside. I was thus 
forced, though reluctantly, to dismiss all the experiments thus ft 
made as having yielded doubtful results, excepting those made it 
the propagating house, of which it will be necessary to speak 
further. : 
How can we account for the results in this situation differing 
from those of the other rooms? I was unable at that time t 
find any good reason, the conditions appearing to be about the 
same. Subsequent experimentation, however, threw new light 
upon this vexed question. It will be only necessary here to 
state, what I trust will be evident to the mind of the reader later , 
on, that the somewhat more striking results in this house ne 
have been due to the fact that it was well stocked with flowers 
geraniums, poe 
(To be continued.) 
"ry" 
THE CREODONTA. 
BY E. D. COPE. 
(Continued from the March number, $. 267.) 
HYÆNODONTIDÆ. 
I this family the anterior cusp of the inferior gee 
a tree. m 
the last inte 
In the Eia 
molars, on the contrary, the anterior basal cusp has ge 
and the posterior one is developed behi ) 
blade. The superior molars, like the inferior, 
lobe. ae 
Professor W. B. Scott has studied the posteriof 
brain-case of a species of Hyznodon, which he om 
lows. I quote from the advance sheets of his paper 
ject, which he has kindly permitted me to us¢- 
“The hind limb is in essentials very like eye 
the Bridger Eocene; the femur has a decided tai 
The tibia is much like that of Mesonyx, ame iy 
characteristically Creodont in having its ast ie 
1 My acknowledgments are due Mr. Menje for valuable assis 
ing these observations. 
