( 1077 ) 
The Experiments having been made twice over, the ’ 
Table is twice fet down ; and thofe Experiments in 
which the Bladders fell ftreight down, and the moft 
regularly, have this Mark before them ("^ ). 
Marks. 
Diameters 
in Inches 
Weight in 
Grains Tro) 
lime of tht 
vphole Fall 
Diff. between the 
Lead and Bladder. 
A 
128 
19 f' 
14, Seconds. 
f'B 
5.^93 
156 
I7b 
C 
^.33 
137*. 
>8: 
* 4 r 
D 
97r 
22i 
5)02, 
21 F 
17 
* A 
19" 
i 4 r 
B 
i8| 
Hr 
* C 
i8| 
H 
D 
24 
i9r 
E 
2-li 
The Diameters and Weights may be reLyed upon, 
being taken the Day that the Experiments were made, 
and the Day after ; but the Diameters and Weights 
taken i o Days before, not agreeing with thele, I have 
left them out. For the Bladders by drying had loft 
of their Weight, and altered their Diameters. 
As the Necks of the Bladders in drying (brink, fo 
as to open a little, they muft be blown before each 
Experiment. And for the manner of letting them fall 
exadly in the fame Inftant of time, it is defcribed by 
Figure If, in which 
A, A, A A, is the Hole through which the Bodies 
fell; I, 2 , is a Board laid over the Hole. G, D, D is 
another Board fixt to the firft Board by the two Wood- 
Screws D, D, with a Pulley G at the other end of it, 
over the Hole. W is a two Pound Ball of Lead 
faftned 
