9 
Of Weights and Measures . 
TABLE 
For converting O Drams* and Grains Troy into Decimals of 
the Troy Pound. 
Grain 
lbs . Troy j 
! Dram 
1 
lbs . 7Vov 
Oz. 
lbs. Troy 
1 . 
as 
.00017361 1 
1 . 
= 
,0104166 
1. 
.0833 
2. 
= 
.000347222 
2. 
= 
.0208333 
2. 
= 
.1666 
3. 
,000520833 
3. 
= 
.0312500 
3. 
S=5 
.2500 
4. 
=5 
0 < 594444 
4. 
= 
.0416666 
4. 
= 
.3333 
5. 
2= 
.000868055 
5. 
= 
.0520833 
5. 
= 
.4166 
6 
5= 
.001041666 
6. 
= 
.0625000 
6. 
= 
.5000 
7. 
= 
,0012152 77 
7. 
= 
.0729166 
7. 
,5833 
8. 
£1= 
001388888 
8. 
.6666 
9. 
=3 
.001562500 
9. 
= 
.7500 
10. 
= 
.8333 
11. 
=s 
.9166 
TABLE 
For converting Decimals of the Troy Pound into Troy Ounces, 
Drams, and Grains. 
lb. 
oz. dr. 
£-r. 
lb. 
oz. 
dr. 
grs. 
lbs. 
grains 
.1 
1:1: 
36 
.01 — 
0 
: 0 : 
57,6 
.001 
5.76 
.2 
2:3: 
12 
.02 — 
0 
: 1 : 
55.2 
.002 
= 
11.32 
.3 
=S 
3:4: 
48 
.03 — 
0 
: 2 : 
52.8 
.003 
= 
17.28 
.4 
4:6: 
24 
.04 = 
0 
: 3 : 
50.4 
.004 
= 
23.04 
.5 
6:0: 
O', 
05 — 
0 
: 4 : 
48,0 
.005 
= 
28.80 
.6 
7:1: 
36 
,06 — 
0 
: 5 : 
45.6 
.006 
=s 
34.56 
.7 
= 
8:3: 
12 
.07 = 
0 
: 6 : 
43.2 
.007 
= 
40.32 
,8 
= 
9:4: 
48 
08 = 
0 
: 7 : 
40.8 
.008 
= 
46.08 
„9 
= 
10 : 6 : 
24 
.09 = 
0 
: 8 : 
38.4 
.009 
= 
51.84 
French Weights and Measures . 
THE numerous and valuable researches of French 
authors in every branch of chemistry, require a know- 
ledge in the reader of the weights and measures common- 
ly employed by them ; which is more particularly neces- 
sary, as the denominations common to several measures 
in both countries express very different quantities both 
VOL. I. B 
