W. B. Dwight— Wappinger Valley Limestone. 51 
a head of Echino-encrinites anatiformis, distorted, which must 
dance, sometimes forming masses as large as a human head or 
larger. The Chetetes lycoperdon has not yet appeared in any of 
its forms. The abundant encrinal columns are of the small 
size usual in this limestone; one of them is one decimeter 
long and seven millimeters in width. 
I have already mentioned my discovery at Salt Point, in the 
same Wappinger limestone belt, six miles northeast of Roch- 
dale, and four northeast of Pleasant Valley, and also at another 
place two miles northeast of Pleasant Valley, of numerous uni- 
valves coiled nearly in a plane, and of small and delicate Ortho- 
cerata. Lately I have found abundant outcrops of the rock 
containing these fossils at Rochdale, in close contiguity to the 
Trenton exposures. 
Further study of these fossils, in consultation with the able 
paleontologists mentioned above, with the finding of addi- 
twisted, curved, and knotted network, always suggesting f ; 
and very frequently showing an undoubtedly fucoidal nature. 
