f xxiv ] 
particular accident, as they had by 
no means been uniform; nay, had 
even been often contradictory, as he 
himfelf candidly owns (fee vol. I. 
p- 91, &c. of Dr. Prieftley’s work 
on the fubject of air, and his laft 
work, p. 296.); and as Mr. Sheele 
had conftantly obferved a contrary 
effect from beans. 
Dr. Prieftley acknowledges, p. 
299- that, by repeating (1778) 
again his experiments, they proved 
to be unfavourable to bis former by- 
pothefis. ** For,” fays he, * whe- 
* ther A made the experiments with 
“air injured by refpiration, the 
m2: parnine of candles, or any other 
$s phlogiftic procefs, it did not grow 
* better but worfe; and the longer 
the plants’ continued in the air, 
“ the more phiogifticated it was.” 
ue dione thus farther : “1 have 
= “ had 
