<: 50 
were laid upon the bare Ground ; and duringthefe Ex- 
periments, he never obferved the lead Impreflions or 
Traces of Dew on the upper Surfaces, w’nreas the lower 
were always covered with it. He repeated the fame 
Experiments lad Year, and with the fame Succefs, 
excepting in one Cafe, where a Plate lying too near 
fotne Lavender, was bedewed a little on that Part of 
its upper Surface, which was next the Plant, the 
oth-cr Part however remaining dry. He alfo 
fu fpended thefe Plates by Threads, in an hori- 
zontal Situation, and found the Dew fpread almoft 
equally over both Surfaces, 3t tile Height of 
three, /our, or five Feet} at the Didance of one Foot 
and a half, the Lower was more bedewed ■, but at 
the Heights of one, two or. three Inches, the lower 
was overfpread with Dew, while the upper had 
none. 
He is fo impartial as to mention in Section XVf, 
forne Experiments which he made, and at fird View 
feem’d to contradict; his Theory : For Indance, when 
he ufed convex Bodies, whether round or cylindrical, 
he found the upper Surface covered with Dew, and 
that, whether they were laid upon the Ground, or 
fufpended at any Height from it. 
This Obfervation is general, and extends to Bodies of . 
this Kind, that are only contiguous, as Heaps of Straw, 
Hay or Wool. It is to Obfervations of this Kind, the 
vulgar Opinion of Dews falling, owes its Birth and 
main Support. Mr. Gerjten therefore propofes to 
confider thefe didindly in another E(fay. But lead 
any Argument fhould in the mean time bedrawn from 
them againd this Hypothefis of theAfcent. of Dews 
from the Earth, he oppofes Experiment to Experiment. 
Thus 
