io6 Sir Benjamin Thompson’s Experiments 
June i/th, cloudy, with intervals of fun Chine. The globs 
with about 4 hours fun gave 7-; cubic inches of air, of a. very 
eminent quality, vi%. la + 4« = 1 ,40, 01*360. 
The water having by degrees loft its tranfparency, and hfav-t 
ing acquired a deep green colour, it broke up this day, and de- 
pofited a green feditnent ; after which it recovered its tranfpa- 
rency, and became almoft colourlefs. It continued, notwith- 
ilanding, to furnifh air in conhderable quantities. 
June 1 8th, being expofed in the fun’s rays from 8 o’clock 
In the morning till 2 o’clock in the afternoon (when the hea- 
vens became overcaft), the globe yielded 6 1 Z ~ 7 ~ cubic inches of 
air, which, proved with nitrous air, gave la \n = 1,44, 
or 356. 
June the 19th and 20th. Thefe two days the globe furn idled 
no more than 3-/“ cubic inches of air, which, proved with 
nitrous air, gave \a -p yi — 1,06, or 294; after which it ceafed 
totally to furnifh air, and the colour of the water changed to a 
dead yellowifh call, and the cotton affumed the fame hue. 
The following are the quantities and qualities of the different 
parcels of air furnifhed in the courfe of this experiment. 
Quantity. 
Quality. 
Upon the 10th of June 
l| cubic inches 
ia+ in= 1,65, or 35 
Uth, I2th, and 13th 
I - - 
ifl+ioz=2, or O 
14th - 
n ta. M 
15th 
1 0 v%V 
la + 3«z=I,43, or 257 
16th - 
1 4 1 3 oV — 
ia+ 3«= 1,34, or 266 
17th 
7 io\ 
la + 4«:=: 1,40, or 360 
1 8th - 
6 iVc - 
la + 4«= 1,44, or 356 
19th and 20th - 
3 tVs 
Ii7 + 3M — 1,06, or 294 
Total quantity 
44^ Mean qviality ia-f 30 =r 1,23, or 277 
