Oranges, lemons, corks, and a few other articles are often sold by the gross; nails, tacks, &c have six score to the hundred.
Sheet lead is from 6 lb to 10 lb to the square foot. A pipe of an inch bore is commonly 13 lb or 14 lb to the yard in length.
A solid yard of well wrought clay will make 460 bricks. Thirty-two common bricks will cover a square yard. A common brick must not be more than 9 inches long, 4½ inches wide, and 2½ inches thick.
Plain tiles should be 10½inches long, 6¼ inches wide and ⅝ inches thick.
An imperial gallon of seal or whale oil should weigh 9 lb; spermaceti, 8 lb; which test of quantity all consumers are recommended to employ, as many use the old measure, which is 1-5th less.
The log-line used in the navy is 48 feet long.
From Statistics and Calculations essentially necessary to persons connected with Railways or Canals; containing a variety of information not to be found elsewhere. Calculated and arranged by Samuel Salt 2nd ed Effingham Wilson, London 1846