1. Required the circumference of a circle, the diameter being five inches?

In the column of circumferences, opposite the given diameter, stands 15.708* inches, the circumference required.

2. Required the capacity, in gallons, of a can, the diameter being 6 feet and depth 10 feet?

In the fourth column from the given diameter stands 211.44712.* being the content of a can 6 feet in diameter and 1 foot in depth, which being multiplied by 10 gives the required content, two thousand one hundred fourteen and a half gallons.

3. Any of the areas in feet multiplied by .03704, the product equal the number of cubic yards at 1 foot in depth.

4. The area of a circle in inches multiplied by the length or thickness in inches, and by .263, the product equal the weight in pounds of cast iron.

* See preceding page for Decimal Equivalents to the Fractional parts of a Gallon and an Inch.