Capacity
The Litre was originally a cubic decimetre, but this definition has been abandoned. It is now defined as the volume of a kilogramme of pure water in air at 4 degrees Centigrade = 39·2° Fahrenheit.
At ordinary temperatures a litre of water weighs about 998·8 grammes or 0·9988 kilogramme (see Table at end of [Chap. X]).
The only minor unit practically used (and only in scientific work) is the millilitre, under the name of cubic centimetre, = 15·432 grains of water.
1 Litre = 2·204 lb. water, or 1·76 pint.
1 Pint = 0·568 litre; 1 gallon = 4·546 litres.
The principal larger unit is the Hectolitre = 22·04 gallons or 2·75 bushels. The Decalitre = 2·2 gallons.
1 Bushel = 36·37 litres; 1 Quarter 291 litres or nearly 3 hectolitres.
1 Bushel to the acre = 0·9 hectolitre to the hectare. (Deduct 1/10 on English.)
1 Hectolitre to the hectare = 1·11 bushel to the acre. (Add 1/10 to French.)