328 APPENDIX. 
the Weight of the Air, which paiTed thro' 
burnt Adics into an exhaufted Receiver, tho' 
in a diy Summer Air there was no Moifture 
found by this Means, as Mr. Peter Van 
Muskhenbroek^ who made the Experiment, 
relates in his Oratio de Methodo infiituendi 
Experimenta PhjJlca^ p. xxviii. Vide Tent a- 
mina Experimentonm naturalinm captorum 
in Academia del Cimento, We may there- 
fore hence reafonably conclude that thefe 
five hundred and twenty two cubic Inches 
cf Air were dirqualified for Refpiration, not 
barely by fuch an additional Moifture, but 
alfo from fome ill Qiialities in that Moifture; 
I fufped' among others, the GrofTnefs of thefe 
Exhalations from the Lungs, v/hich may hin- 
der their free entrance into the minute Vefi- 
clcs ; for it is with very great Difficulty, 
that the almoft fuftbeated Lungs can, in this 
Experiment, be but a little dilated. 
6". We may alfo from this Experiment on 
Wood-Afiies, eftimate the Quantity of Moif- 
ture that is carried off' by Refpiration ; for 
iince a Qiiantity equal to feventeen Grains 
vyas breathed off in fifty Expirations, there 
\vill proportionably be four hundred and eight 
Grains evaporated in the twelve hundred Ex- 
pirations 
