978 TRANS. OF THE ACAD. OF SCIENCE. 
No fossils were observed in the el sandstone. This 
rock is fine-grained, more or less micaceous, and of moderate 
hardness. Although sometimes exposed in rps 
strata, it is, for the most part, ones and, 
finely laminated. It contains, near its upper portion, | 
a compact limestone from a pvt inches to sot 
FE as 
