The ounce is considered as 16 drams.

The unit is the pound. It contains 7000 grains.

The following denominations are also used:

14 pounds=1 stone
100 pounds butter=1 firkin
100 pound grain or flour=1 cental
100 pounds dried fish=1 quintal
100 pounds nails=1 keg
196 pounds flour=1 barrel
200 pounds pork or beef=1 barrel
280 pounds salt at N. Y. works=1 barrel
Troy Weight

Troy Weight is used in weighing gold, silver, and jewels.

TABLE

24grains (gr.)=1 pennyweight (pwt.)
20pennyweights=1 ounce (oz.)
12ounces=1 pound (lb.)
Pounds Ounces Penny-
weights
Grains
1=12=240=5760

In weighing diamonds, pearls, and other jewels, the unit commonly employed is the carat, which is equal to 4 carat grains, or 3.168 Troy grains.