en 1 be fpecific Gravities, &c. of Saline Subfiances. 1,83 
Oil of 
vitriol. 
Acid. 
Water. 
Accrued 
denfity 
Matheinat. 
Ip. gravity. 
Grain?. 
5200 
mmm _ _ 
4587,95 
,069 
1,098- 
1,167 
5300 
— — 
46 » 7,95 
,069 
1,096 
1,165 
5400 
— — 
4787,95 
,069 
1,094 
1,163 
550 ° 
— — 
4887,95 
,068 
1,092 
I,l6o 
5600 
— — 
4987,95 
,067 
1,091 
1^58 
5700 
— — 
5087,95 
,067 
1,089 
1,156 
5800 
— — 
5187,95 
,067 
1,087 
I , 1 54 
5900 
— — 
5287,95 
,065 
i,c86 
1 '<» 1 5 1 
6000 
— — 
5387,95 
,064 
1,084 
1,148 
6100 
6 1 2,05. 
5487,95 
,064 
1,082 
1,146 
. 6200 
5587,95 
,063 
1,081 
4 I 44 -: 
6300 
— — 
5 6 87,95 
,062 
1,080. 
1,142 
6400 
— — 
5787,95 
,062 
HH 
O 
00 
1,140 
6500 
— — 
5887,95 
,061 
1,077 
1,138 
6600 
— - 
5987,95 
,060 
1,076 
I , I 3 6 
. 6700 
— — 
6087,95 
,060 
1,074 
1,134 
6800 
- — 
6187,95 
,060 
1,072 
1,132 
* 6900 
— — • 
6287,95 
,060 
1,070. 
I » 1 3 ° 
700.0 
— — 
6387,95 
,°59 
1,069 
1,128 ( 
With regard to the nitrous acid, I found alfo I had been a 
little too precipitate as to the time of examining its denfity 
after it had been mixed with water. Hence, making ufe of 
fome whofe fpecific. gravity was 1,474, I allowed the mixtures 
to reft twelve hours, until it was diluted with twice its weight 
of water, and the fubfequent mixtures fix hours at lead: ; by 
the former procefs of reafoniug, I found the fpecific gravity 
of the mere nitrous acid to be 5,5.30, 
4 
Spirit; 
