EXX PERIMENTS — | 
UPON ‘ 7 
WEG £27 sae G “4 
Their great. Power of purifying the | 
xed Air in the Sun-fhine, ; 
AND OF : 
Injuring it in the Shade and at Night. = 
TO WHICH Is JOINED, 
By JOHN INGEN. -HOUSZ, 
“Connfellor of the Court and Body Phyfician _ 
o theis Anperiat and Royar Ma jeertens es 
: ae 7 R, s, é&c, &e, ke 
