Delaware Sulphur Springs. 73 
the Mississippi River; it is somuch like this that one can hardly be 
distinguished from the other. . I have specimens of both in my cabi- 
net. ese deposits, destitute of vegetable remains, would seem to 
indicate the western termination of the coal series.* The deposits 
north and west. are evidently tertiary, resting on the older secondary, 
filled with bowlders of the primitive rocks and broken relics 
secondary series—in some places encroaching on the coal measures, 
as at the falls of the Cuyahoga, and again receding to the west, like 
the bays and headlands on a rocky coast. Another indication of 
a change in the deeper deposits, similar to that on the south east 
side of the coal measures, is the formation of mineral springs. While 
none are found of any magnitude or mineral strength within the great 
sandstone and coal basin, they are very abundant on both the north 
and south sides of it, in the magnesian and transition limestone series, 
which are known to prevail in these regions. 
Delaware Sulphur Springs.—In Delaware County, about thirty 
five or forty miles north westerly from Newark, are found sev 
sulphur and ferruginous springs. ‘The most noted of these is the 
White Sulphur, in the town of Delaware. From the midst of lime- 
stone rocks, filled with marine shells and Encrini, similar to those 
found in the valley of the Greenbrier, (Va.) it issues in a stream of 
considerable volume, and discharges such quantities of sulphuretted 
hydrogen, as to be smelt at a considerable distance. As the gases 
leave the water, a precipitation of lime and sulphur takes place, in 
such abundance as to incrust sticks and stones lying in the course 
of the current with a white coat, similar to the White Sulphur water 
near Lewisburgh, Va. It is celebrated for the cure of similar dis- 
eases, and is fast rising into notice, for its valuable sanative proper- 
‘ties. The following analysis, made last spring by Dr. Michell, pro- 
fessor of chemistry in Kenyon College, will show how near it ap- 
proaches to those celebrated waters. 
Analysis of the Delaware Sulphur Spring.—< One wine pint of 
the water, taken immediately from the spring, contains of 
Six miles west of Newark, at Granville, in the same fine grained sandstone, 
fossil ge st animals have several times been found by quarry-men. I have not 
see he Specimens, been an I a ae spplicasiom to procure —— of 
them, but h om such This 
-Tock is, geologically, below a coal measures—passing un under that formation—and 
Biny contain the Sauroid fishes of Agassiz, if not the Saurian reptiles. 
Vou. XXXI.—No. 1. < 10 
