(a) Of the furlong at 10 chains, of the square furlong at 100 sq. chains, and of the acre at 10 sq. chains.
(b) Of weights by the 10-lb. gallon and the 100-lb. cental.
(c) Of the ton-register of 100 cubic feet = 100,000 ounces of water.
6. The disappearance of the Troy pound. The Troy ounce must shortly disappear; the 112-lb. cwt. and its stone-divisions are optional.
The Imperial Standards are now:
Length.—The Foot, approximately the side of a cubic vessel containing 1000 ounces of water. The yard of 3 feet or 36 inches.
The Furlong is 220 yards, either—
10 chains of 66 feet or 22 yards, or 40 rods of 5-1/2 yards.
The Mile is 8 furlongs = 1760 yards.
The Nautical mile is 1000 Olympic fathoms = 6080 feet or 2026-2/3 yards.