* 
FOR THE ADVANCEMENT OF SCIENCE. 565 
The parallelism of the groups in the eastern and western parts of the 
State may be thus presented : — 
Old Red Sandstone of Tioga, etc Catskill Mt. aperi: 
Chemung Group, Chemung Gro 
Portage Group, Oneo ta Sandstone, 
Hamilton Group, Ha "icm Gro 
In the central part of the State there is no sandstone iid the char- 
ceous matter, and the absence of the evidence of cross currents pro- 
ducing diagonal virens anie d the ise of the same epoch to be 
Spread out evenly o 
We are not yet m teva to dl that the Oneonta sandstone of 
or 
followed the epoch of the slates and flagstones of the Portage as seen o 
th 
EGERIBASPR ade a communication on ‘ Boulder-trains in Berk- 
Shire county, spinis iP " In Richmond, Berkshire county, Mass., 
here are six or seven nearly parallel trains of angular boulders, two of 
them particularly well defined. Attention was called to them years ago 
by Dr. Reid of Pittsfield. They have been also referred to, and in part 
phép by Sir Charles Lyell, and the late President Hitchcock. 
e trains originate partly in a range of hills consistiug of chloritie 
naan, C o 
of the larger for some dise iens 'Their direction during the first 
heir course is south about 55° east. Somewhat farther on, they 
uth. 
President Hitchcock prosening that there was a submergence of the 
