[ 227 ] 
had ftood about three hours in the 
room, the air of the jar was fo 
much infected that a candle could 
not burn in it. 
The fame effect was obtained 
with a fimilar quantity of the fame 
flowers expofed during three hours 
in the fun-fhine. 
70. A fimilar quantity of thefe 
{weet-fcented flowers were kept in 
a pint jar over-night; when they 
had fo much fouled the air that an 
animal muft have died in. it; one~ 
meafure of it and one of aaeseecnt 
occupied 1.68. 
All kinds of flowers had neat 
the fame effect. All of them fouled 
the air more or lefs, either in a 
room or in the open air, as well by 
day as in the night, equally in fun- 
—_ as in a fhaded pia = 
Q2 . SEC 
