48 ON THE PROBOSCIDEAN FOSSILS OF THE PLEISTOCENE DEPOSITS. 



consisted of single teeth. Evidently, these single teeth which are 

 found in stream beds and in drift gravels, are not in situ, but have 

 been dislodged by streams and glacial currents from the beds 

 which originally contained them, and they have been separated 

 from the other parts of the skeleton to which they belong. 



In eighteen instances, remains were found in boggy places, or 

 near springs, and in every case save one these consisted of several 

 parts of a skeleton, usually teeth and some bones. Many of these 

 also came from alluvial deposits, but it is evident that they were 

 found in the places where the animals perished. 



But most of the fossils have come from the loess or from near 

 the surface of the boulder clay imder the loess. There are twenty- 

 four such finds, and only one is mentioned as consisting of a single 

 tooth. The rest are referred bo as "numerous bones"', "several 

 bones", "parts of skeletons", or as "remains". In cases of this 

 kind, the fossils are likewise in situ. In other cases it is not pos- 

 sible to make out from the data given whether the finds should 

 be classified as from alluvium or as from bogs, for it seems quite 

 likely that some of the bogs may have been on alluvial lands. 

 Barring such, the number of finds representing different modes o^ 

 interment may be tabulated as follows: 



Specimens Found in 





0) o 



: o m 



U O <V Oi 



S.s.e u 



^ [A V) O 



Streams or in alluvium.... 



Glacial gravels 



Bogs or near springs 



Loess, or on glacial clays 



2 



1 



17 



23 



37 

 4 

 1 



1 



Specific Detennination of the Fossils. 



Among the individuals represented in the list, Mastadon, Ele- 

 phas primigenius and Elephas americanus have been expressly 



