1 a97 3 ? 
The air of the firft jar was cxan seme 
amined at half an hour paft two in™ 
the afternoon; its tef was 2.033 — 
2.0575 2.0325 25025 2.543 3.50. 460 
The air of the fecond jar was 
examined between four and five 
o’ clock ; its teft was 2.06; 2 2,072; 
2.06 5 2.02; 2.083 3.03. 497 
The air of the third jar was ex- 
amined between fix and feven; its 
teft was 2.122; 2.1035 mas aaes7 
2.565 3-50. 55° 
27. Three jars, OF Ssqatioe: eich, 
full of pump-water, were expofed 
at ten in the morning in ‘the fun, 
the weather being agreeably warm; 
each jar contained two handfuls of 
the leaves of an E/m-tree. 
The air of the firft jar was put 
to the teft at two in the afternoon 3 
the refult was 1.90; 1.81; L9G = 
2.66 ; 3.66. 337 
O32 = The 
