26 
[Assembly 
oxide of iron falls down in reddish flocks, and the tests then produce 
no effect. 
The specific gravity of this brine is 1 .11060 at 60° F. And as has 
already been stated from the information which we possess on this point, 
it is highly probable that for a period of at least thirty-six years, its 
strength has suffered little or no change. I cannot but hope that we 
shall hereafter have a set of observations which will enable as to deter- 
mine with more accuracy than is at present possible, whether the strength 
of the brine is subject to periodical variations, and whether it is or is not 
influenced by the state of the atmosphere. 
1,000 grains of the Salina brine evaporated to perfect dryness by the 
application of a sufficient degree of heat, left a residuum of 146 ►SO 
grains. According to an analysis which I have recently made, the fol- 
lowing is the composition; 
Carbonate of lime, , 0 . 17 
Sulphate of lime, 4.72 
Chloride of calcium, 1.04 
Chloride of magnesium, 0.51 
Chloride of sodium, or common salt, 140 .02 
Oxide of iron, with a minute portion of silica and carbonate 
of lime, 0.04 
Carbonic acid, holding in solution the carbonate of lime 
and oxide of iron, 0.09 
Water, with a trace of organic matter, and bromine, 853.41 
1000.00 
This brine contains 1130 grains of pure and perfectly dry chloride 
of sodium in a wine pint, and 9045 grains or 1.29 lbs. avoirdupois, 
in a gallon. It therefore requires forty-three and a half of these gal- 
lons to yield a bushel of salt weighing fifty-six pounds. But as salt 
made by boiling, ordinarily contains not less than five per cent of wa- 
ter, forty-one and a half of these gallons will yield a bushel of salt of 
merchantable quality. 
Syracuse Well. — This is situated on the marsh, near the coarse salt 
fields. The well is about one hundred and seventy feet in depth and 
supplies with brine the salt works at Syracuse. 
According to the observations of Dr. Wright and myself, the pump 
at the Syracuse well raises and distributes sixty-two gallons of brine in 
