124 THE ILLINOIS GLACIAL LOBE. 



The animal remains (rabbit and skunk, .see p. 42) found in the peat at 

 Yarmouth show a remarkable state of preservation, the marrow of the bones 

 being still preserved, as noted in the examination by Dr. F. W. True. This 

 is perhaps no more remarkable than the state of preservation of some speci- 

 mens of the wood from the same horizon. Several of the wood specimens 

 have been found to take fire as readily as the wood from our living forests. 

 In not a few cases within the writer's notice leaves of grasses or sedges 

 have been found in a fair state of preservation. Instances of the occur- 

 rence of leaves of oak or other deciduous trees have been reported to the 

 writer from the Yarmouth horizon, but none have come imder his personal 

 observation. The character of the life of this interglacial stage is a field 

 promising much of interest, but which as yet is scarcely at all developed. 



