10 On the Salt Springs at Salina, Syracuse, §e. 
by the strength of one man. The water from the reservoirs 
is received first into the deepest vats, in which is deposited 
much of the iron or coloring matter, which appears in the 
form of a pelted as soon as the temperature (at the wells it 
is 50°) is increased by the action of the sun or warm atmos- 
phere. From those it is passed by means of pipes into vats of 
less depth, not exceeding six inches, and at a lower level, in 
which it remains till, by the evaporation and consequent con- 
centration of the brine, and the precipitation of sulphate and 
carbonate of lime, it is sufficiently depurated for the crystal- 
ization of the salt which will then begin to appear on the 
surface. The brine, leaving behind pes substances that have 
been separated, Je Amman. awn off into vat of a, level still 
ower, which are kept clean, and in whic hic lt is. made 
with greater or less “apis vein to the altitude of the 
sun, the clearness of t 
ture, and the strength of the wind. ae the brine, by the 
formation of the salt in the last vats, diminishes, and as it is 
the bottom, anes ores are drawn occasionally, and as 
they are needed, from the second gradation or tier. 
e removal af the salt from the vats is without any regu- 
larity as to time or quantity, and is dependant upon the con- 
venience of the manufacturer, who sometimes leaves it till 
there is an accumulation of three or four inches, or takes it 
out when there is barely enough to cover the bottom. | It 1 a 
shoyelled into tubs, olding about one hundred pounds, 
which it is drained for a few minutes, and, without friar 
drying, | is conveyed in carts to the storehouses. 
_ The measured bushel will weigh from seventy-four to 
alt water free from agitation, the surface has 
heat 106°, while that in contact with or near 
the bottom of the y: vat was 122°, and, by the hydrometer, was 
ascertained to be sp y lighter than the upper portions. 
<The m other-water (remaining after the extraction of the 
salt) is a 2 soltion a the muriates of lime and magnesia, pos- 
sessing a pungent taste, unlike the bitter in that from the 
pan, <a probably conten very little magnesia.* 
: there is, in that which I examined scarce . 
. See also Mr, Chilton’s results, Vol. VIL. p. 844, of this 
