C *3 ] 
nerlhad graduated four fuch Inches. Now the Sur- 
face of the Funnel being, as has been faid, exadtly a 
fquare Inch, no Rain can by it get into the Tube, 
but fuch as falls within the Square of one Inch ; which, 
as the Shower is more or lefs, has its exaCt Quantity 
fhewn upon the Board, on which a moveable Index 
is placed. 
This Machine has highly anfwer’d my Expectation ; 
its Form being very fimple, and eafily repaired, if 
any Accident happen. For, fhould the Tube be 
broke, ’tis only rubbing out the Graduation, which 
is marked with a Black lead Pencil upon the Board 
painted white, and gauging your new Tube with the 
Cubic Meafure for a new Graduation, and your Ma- 
chine is again complete. I had one Tube broke, and 
about three Hours Pains fet all to- rights. In Winter 
it will be necefiary to let no Depth of Water remain 
in the Tube ; for, fhould there be a Froft, the Ex- 
panfion of the Ice will certainly break it. The Ma- 
chine will equally ferve for diffolved Hail and Snow., 
Its Figure may be feen Tab. I. Fig. y . 
SECT. VL 
Of the Monthly 0 bfer vat ions. 
T HE vacant Page at the End of every four Weeks,, 
referved for Obfervations occurring in the pre- 
ceding Month, and giving a fummary Account of 
the greateft Difference of the Weather in it,, is a 
Method peculiar to this ‘Diary j and one which, I 
flatter myfelf, will be allowed exceeding pertinent 
and ufeful. The great End of this, and all \ Diaries * 
is to fmrnifh Materials for a Set of found Obferva- 
tions 
