196 Contributions from the Sheffield Laboratory. 
Art. XXVIII.— Contributions from the Sheffield Laboratory of Yale 
College—XII. Analysis of a Mineral Water; by FREDERICK F. 
THomas, Ph.B. 
THE mineral spring, the water of which is the subject of this 
notice, is situated in the town of Barton, Tioga Co., New York, 
about seven miles northeast of the village of Waverly, near 
what is called Talmadge Hill. It is one of two sulphur springs 
that have been observed in that county. The other, resembling 
it in character, is about twenty miles north, near the village of 
Spencer; both have been noticed in the State geological reports, 
and have been in repute for many years among the inhabitants of 
that region on account of certain remedial properties which their 
this Laboratory, consist ri 
also contain sulphuric acid 
quantities, some potash, soda and iron, as well as chlorine, 
organic matter, and a trace of manganese. They turn black upon 
heating before the blowpipe, but no effervescence is o 
on treating them, in the pulverized state, with acids. The wa- 
of sulphuric acid made on the water as soon as received at the 
laboratory, gave 0°116 grain per gallon, while other estimations, 
e from water which had remained sealed in bottles for some 
weeks, gave a slightly larger amount, which resulted from oxyda- 
tion of sulphur. 
As the rocks in which the spring rises contain traces of man- 
