And having set 40 on C to 29.7 on D, against 8 on D stands 2.9 on C; the 4/10 of which is 1.16. This taken from the 119.1 in the last form, leaves 117.9 wine gallons.Ex. 2. Required the content when the length is 20, and the diameters 12 and 16.Answer 12.018 ale gallons,Answer 14.724 wine gallons.PROBLEM XIV. To find the Content of a Cask of the Third Form.To the square of the bung diameter add the square of the head diameter; multiply the sum by the length, and the product again by .0014 for ale gallons, or by .0017 for wine gallons.EXAMPLES.1. Required the content of a cask of the third form, when the length is 40, and the diameters 24 and 32.diagram0