No. 200.] 
29 
Carbonate of lime, 0.13 
Sulphate of lime, 4.04 
Chloride of calcium, 1 .72 
Chloride of magnesium, o . . . 0 . 77 
Chloride of sodium, or common salt, 142 . 85 
Oxide of iron, with a minute portion of silica and carbonate 
of lime, 0.03 
Carbonic acid, holding in solution carbonate of lime and oxide 
of iron, 0.07 
Water, with a trace of organic matter and bromine, 850.39 
1000.00 
There are therefore 1,154 grains of pure chloride of sodium in a pint 
of this brine, and 9236 grs. or 1 . 32 lbs. avoird. in a gallon. Hence, 
forty-two and a half gallons will yield a bushel of perfectly dry salt, or 
about forty and a half gallons for a bushel, in the ordinary state of dry- 
ness. 
Present state^ and prospects of the manufacture of salt at the Onondaga 
springs. 
Under this head, my object is to present a few facts intended to ex- 
hibit the advantages which the Onondaga springs possess, and to offer 
some suggestions concerning the modes of manufacture pursued at the 
works in their vicinity. 
According to a report of the Secretary of the Treasury made in 1830, 
the quantity of salt manufactured in the United States in 1829, was 
3,804,229 bushels, of which the Onondaga springs furnished 1,291,220 
bushels. The amount of salt made at these springs, however, has in- 
creased considerably since the date of that report, and in 1835 amount- 
ed to 2,222,694 bushels. Admitting that the produce of the other 
works in the United States has increased in the same ratio, the Onon- 
daga springs still yield more than a fourth part of all the salt manufac- 
tured in this country. 
If our estimate of the amount of brine raised by the pumps now in 
operation, at Syracuse, Salina, Liverpool and Geddes, be correct, we 
have a total of 44,760 gallons in an hour, or 1,074,240 gallons in twen- 
ty-four hours. If the same amount was raised for three hundred days, 
it would give a total of 322,272,000 gallons of brine, which, allowing 
fifty gallons of brine to a bushel of salt, would yield 6,445,400 bushels. 
TLis allowance I think is sufficient to cover all unavoidable loss in the 
manufacture, as it appears from the analyses that have been given, that in 
