on the Production of Dephlogifticated Air, IOI 
inches of air, which, proved with nitrous air, gave i#-f 4*2 = 
*>44> or 356. 
May 1 7. The globe furnifhed this day, during 3I hours of 
funfhine, 6 cubic inches of air, of a very eminent qualitv ; 
for, proved with nitrous air, it gave ui 4- 1,35, or 
3 6 5 - 
May 18. This day cold and cloudy; not more titan if 
hours funfhine ; air produced f of a cubic inch ; quality 
1274-422=11,56, 01*344. 
May 19. The globe appearing now to be quite exhaufled of 
air, fhewing no figns of furnifhing any additional quantity, 
though expofed to the a£lion of a very bright fun, I removed 
the globe from the window, and placed it by the fide of a 
German {love, where it was kept warm to ioo° F. from 10 
o’clock in the morning till 5 o’clock in the afternoon. By this 
means I obtained f of a cubic inch of air, which, proved 
with nitrous air, gave ia-{-^n— 1,74, or 326. 
Not being able to obtain any more air from the globe, I now 
put an end to the experiment. 
The quantities and qualities of the airs furnifhed upon the 
different days were as follows : 
Quantity. Quality. 
Upon the 12th, 13th, and 14th of May 9! cubic inches 10 + 3771=1,61, or 239 
15th - - 8 t 4 o 5 - - 10 + 477 = 1,74, or 326 
16th - - 9 - - 10 + 47?:=: 1,44, or 356 
17th - - 6 - 10 + 477=1,35, or 365 
1 8th - - | - - 10 + 477=1,56, or 344 
19th - — | - - 10 + 477—1,74, or 326 
Total quantity - 33 t 9 /c Mean quality 10 + 477= 1,84, or 316 
As in this experiment the air furnifhed each day was removed 
at night, and the place it occupied in the globe fupplied with 
frcfli 
