To find the number of bushels, di vide the volume in cubic inches by 2150.4. To find the number of gallons, divide the volume in cubic inches by 931.
Apothecaries' Fluid Measure.—In addition to the above is the apotheca ries' fluid measure, used in compound ing medicines which are in fluid form as follows: 60 drops (gtt.) or minims (111)= 1 fluid dram (( 3 ) 8 fluid drama = 1 fluid ounce(f ) 16 fluid ounces = 1 pint (f 0) 8 pints = 1 gallon ....Cong.
Cong. 1 08=f 128= f 3 1024=161440. Scale: 8, 16, 8, 60.
(1) Cong., from the Latin congius, means gallon.
(2) 0, from the Latin octarius, means (3) The minim is about equal to a drop of water..
Comparison of the Measures of Capacity.—The following is a com parison of measures of capacity: 1 gal or 4 qt. wine measure contains 231 cu. ink. or 4 qt. dry measure contains 268$ cu.in. 1 gal. or 4 qt. beer measure contains 282 cu.in.
The gallon containing 931 cubic inches is the standard unit of wine measure. The British gallon called the Imperial gallon contains 277.274 cubic inches.
Measurement of Tanks, Casks, and Cisterns.—To find the capacity of
cylindrical tanks of any size in United States gallons, multiply the square of the diameter in inches by the length in inches and that product by .0031; the result will be the contents or ca pacity in wine gallons and decimals of d gallon. For beer gallons, multi ply by .0028 instead of .0031. To as certain the diameter, measure at the bung and also at the head; add to gether and divide the same by 2 for the mean diameter. To ascertain the actual contents if the cask is only partially filled, multiply the height of the liquid in inches instead of the height of the cask.
To ascertain the contents of a.square cistern or watering trough, multiply together the length, width, and depth in inches and divide by 231, the num ber of cubic inches in a gallon. This will give the contents in gallons.
To ascertain the contents of a cir cular cistern, multiply the square of the diameter in feet by the depth in feet, and that product by 5i. The re sult will be the contents in gallons.