of every dimension, and of the shells | which they throw, and the powder necessary for every elevation and use.

The weight which horses and waggons can bear and draw on given kinds of roads. The burdens which boats, barges, and

Shewing the quantity of grains Troy-Weight contained by each of the weights used in the trade of precious metals, and the relation of foreign weights to 100 pounds Troy-Weight.

TABLE OF AVOIRDUPOIS-WEIGHT,

Shewing the quantity of grains Troy-weight contained by each of the weights used in the sale of merchandize, and the relation of foreign weights to 100 pounds and 112 pounds Avoirdupois-weight.

Contents Equiv. | Equiv.
of each to 100 to 112
weight pounds pounds

Grains num.100 num. 100

The gramme, or the unit of French weights, is therefore equivalent to 15,446

grains troy-weight.

According to the prices current received from Leghorn, the equivalent to 112 pounds is only 145.