* 
78 Scientific Intelligence. 
and Pereé Rock, measuring two hundred and seventy-one nautical 
miles, passes near the Grand Pré and across the meadows of the 
Cumberland Basin. It is to these two salt-marsh districts that 
Mr. s i 
that we have really four stationary points in this are. 
must, in closing, reiterate that to the eastward of this meridian, 
and especially in Newfoundland, great changes present themselves 
in the comparison of charts, the depths appearing to be at some 
points less and at other points greater now than formerly.” 
. Further discoveries of fossils in the Wappinger Valley or 
Barnegat limestone; by Professor W. B. Dwicut, of Vassar 
College, Poughkeepsie. (From a letter to J. D, Dana, dated 
Dee. 11, 1880.)—In extending my explorations in the W appinger 
Valley limestone I discovered at Rochdale, east of Poughkeepsie, 
Oct. 28th, a limestone locality affording great num- 
a ledge for at least 1,500 feet, and at one point, for about fifty 
feet, they are so crowded that one can hardly be taken out without 
disturbing several others. 
There 
are also here abundant specimens of discoidal gastero- 
pods, some of which are an inch and a half in diameter; a large 
turreted gasteropod, probably Cyclonema, about three inches 
opinion. It appears, also, in 
striking fossils, to contain the characteristic fucoids and the other 
fossils of the adjacent Calciferous. It would be premature to 
offer any decided opinion as to the stratigraphical position of this 
closely related to the Caleiferous, and in its numerous Orthocerata 
is like the Calciferous and the Quebec groups of Canada. [a 
collecting and carefully examining the specimens, (of which I have 
