98 ASTRONOMICAL axp 
foot during the eclipíe, we cut two pieces. c very zm Soft 
paper, exactly twelve ‘inches Íquaré. “Having: weighed them in 
a nice balance, we placed £heni on an horizontal board in the 
open air, Juft after the greateft ob{curation we weighed one of 
them again, and. found it's weight was increafed by the-dew that 
had fallen-àpon i it, 4T'grains trey. „At the end of the eclipíe- 
we took up the other; and found it S weighit increafed- by thé. 
dew that lay upon it, but 3 grains ; 12 grain being evaporated i 
as the light and heat ;of the fun increafed.-. By-a fimilar expe- 
riment, the. quantity: of dew that fell upon a fquaré foot the 
night before, was found to be 63 grains j the night after the’ 
eclipfe, 7 grains. Thus in 1 hour and 19 minutes, when the 
light and heat of the fun were rapidly - decreafin ing, "there fel. 
JEAN 
om as much hie as Rh de emet. — "e the ni 
To determine what alt teratiert ^ might take place as to y Of 
colis uk ade thi ofervatior s on Farénheit's ther- 
"which Eh was hang ap in 1 a gium. 
l VOL chy 3 kie. W x ry ek. Mar Qi 
UE ER Me eme 
Lake 16/ d er o 
2230 $2: 
TW ` LA RF = 
E 
A 
E 
