to ascertain a Standard of Weight and Measure. 14,1 
w } to check the vibrations of the scales q and r, and bring them 
more speedily to an equilibrium, y z is a table, whereon the 
whole is placed, to raise it to a height convenient for experiments. 
To use with this beam, I had three sets of weights made, viz. 
The 1st set or series of 15 weights, rising in a duplicate pro- 
gression from 1 to 1 63 84 grains, viz. 
Grains. 
1 
No. 
3 = 
4 = “ 
5 — 
6 = - 
8 = 
9 = - 
10 = 
12 = 
13= - 
14 = “ 
2 
4 
8 
- 16 
32 
64 
128 
256 
512 
1024 
2048 
4096 
8192 
Fractions 
of a 
Grain. 
x 
3 2 
_i_ 
I 6 
J_ 
8 
jr. 
4 - 
I 
' OfjLAXX 
0. * r? ^ 4 
. £ * 00 qj 
0- '03 Si 
a '0/3 / 
o.'-/a£. 2 
0'2QZ$ 
0 'SB ft 
/* 
t;c 
y 
15= - 16384 
The 2d series of weights, in an arithmetical order, as follow, viz 
V3AQS 
4- Q 3 / / 
.Q'S&Th 
7 r? * -ry 
/ y J 
y 44 f / 
Grains- 
Grains. 
Grains. 
Grains. 
Decimal Fractions of a Grain, viz. 
1 ooth Grain. 
Tenths. 
1 
IO 
IOO 
IOOO 
,01 
,10 
2 
20 
200 
2000 
,02 
,20 
3 
30 
• • A 
« • • • 
>°3 
>30 
4 
40 
400 
4000 
,04 
> 4 ° 
5 
50 
a * . 
• 0 a • 
,05 
>50 
6 
60 
600 
6000 
,06 
,60 
7 
70 
, , , 
a • • • 
>°7 
>70 
8 
80 
800 
8000 
,08 
-,80 
9 
90 
• e • 
a 
10,000 
20,000 
>09 
N, B. The frac 
made of fine 
> 9 ° 
;tions of a grain are 
wire flatted. 
r 
3 
3 
£ 
<*• 
■2 
•f 
f < 3 > 
Sr & i/-/ 
4 a 
^ yy / 
L£,rt 
'0000 
'Oo0t 
'oooz 
•do of 
'00 If 
S' 
3 
£ 
r 
