[ 3&3 ] 
Let w reprefent the weight of a column of water, 
having its altitude meafured by one of the divilions on 
the fcale, and its bafe to any given furface whatever; 
and let n denote in general the number of thefe divi^ 
lions which meafures the whole length of the column 
of the water which the v/ind fuftains. Then nw v/ill 
reprefent always its weight, and will ferve as a common. 
multipUer for the fpecific gravities of all other liquors,. 
TABLE 
Names of liquors. 
Specific 
gravities. 
Water, 
1,000 
Sat fol. of fait, 
1,244 
Urine, 
1,030 
Ditto, 
1,016 
Alkohol, 
0,825 
Proof fpirits. 
0,927 
See. 
&c. 
Common: Weight mealuring the 
multiplier. forces of the wind. 
nw 
1,244 ^ 
1,030 X nw 
j* nw 1,016 X nw 
0,825 ^ 
0,927 X nw' 
&c. See.. 
EXAMPLE*. 
Let w reprefent the weight of a column of water' 
— th of an inch high, Handing, on a fquare foot; and 
let 80 = 4 inches,. Then (by tab. i.), is equal to 
20,833 Avoirdupois pounds. Therefore 1,2 44x20, 833 
= weight of a faturated folution of fea fait of the fame 
altitude, and = the altitude of a column of a faturated 
1,244 
folution of the fame, weighing 20,833 pounds Avoir- 
dupois^ 
