IX. 



Chemical Examination of the Mineral Water of Schooley's Moun- 

 tain. By William James M'Neven, M. D. Professor of Chemistry 

 in, the University of New-York, SCc. 



[Read before the Society, on the 13th of July, 1815.] 



The mineral water of Schooley's Mountain, in New-Jersey, has of late 

 years acquired so much just celebrity in cases of calculous concretions, 

 that it is equally an object of interest for the physician and chemist to 

 ascertain the nature of a natural production which affords such certain 

 relief in so distressing a complaint. 



The bare taste and appearance of this water show that it is a chaly- 

 beate. It is strongly characterized by the peculiar astringency and 

 savour of ferruginous impregnations. The reservoirs which receive it 

 have need of being frequently cleansed of a yellow ochrish deposite left 

 there, in considerable quantity, by the running of the spring. The 

 water, though remarkably clear when first taken, becomes turbid upon 

 standing for some time in the open air, and after a longer interval, an 

 irridescent pellicle forms on its surface, similar to what happens, in like 

 circumstances, to other chalybeates. Ochre and other indications of 

 iron, are dispersed extensively through the surrounding rocks and soil. 

 Iron ore is so plentiful in the vicinity, that, furnaces are in operation, 

 both in the eastern and western districts of the chain, of which this 

 mountain forms part, and much of the ore is magnetical. Lime-stone 



