212 Account of Sehooley’s Mountain, 
shown a rather more abundant flow. On the whole, it 
may be stated with tolerable correctness that the fountain 
‘ within the bowels of the mountain emits, from this open- 
ing, a quantity of water not varying greatiy from a barrel 
per hour, or six hogsheads per day. The quantity is not 
observed to vary under any changes of season or weather. 
The spouts which convey the water are lined with a yel- 
Jowish deposit. The like sediment incrusts the reservoirs 
at the bathing-house. The earth and stones through which 
the water soaks away, present a similar ochreous appearance. 
Where the boards contain astringent matter, a dark purple 
or blackish colour is formed. 
The presence of iron being thus indicated, a few experi- 
ments were made to determine the matter more clearly. 
A bright blue was produced on adding the prussiate of 
potash to the water. 
Green leaves of the common chesnut-tree, (fagws ca- 
stanea,) on being bruised and infused in the water, formed 
a pale purple. 
Those of chesnut-oak (quercus prinus monticola) yielded 
a brighter purple. 
Those of the sumach (rhus glabrum) quickly turned 
to a purple. 
Fresh lacerated leaves of the maple (acer rubrum). im- 
mediately formed a deep purple. 
$ Hickory leaves (juglans vulgaris) made a faint dusky 
ue. 
Black-oak leaves (quercus nigra) struck a darker colour. 
Batternut leaves (jugdans cinerea) afforded a dusky 
brown. 
The waters of the spring, mixed with brandy, made @ 
mixture of a dark and unsightly colour. 
An infusion of green tea formed browns, purples, and 
blacks, according to its strength and proportion. 
The chalybeate character of the water heing thus esta- 
blished by so many tests, attempts were made to ascertain 
whether there was any gaseous impregnation. 
For this purpose glasses were inverted in a convenient 
vessel, receiving the stream immediately from the spout. 
But not a bubble of air was collected, other than commom 
spring water affords. . 
To determine whether any carbonic acid was combined’ 
with the water in a form not spontaneously separable, lime- 
water was mixed with it; but no change of colour was per- 
ceptible in the mixture. 
Various proportions of the spring-water and lime-water 
were 
