Rule: 1st. Measure the length, breadth and height of the crib inside
the rail; multiply them together and divide by two, the result is the
number of bushels of shelled corn.
2d. Level the corn so that it is of equal depth throughout, multiply
the length, breath and depth together, and this product by four,
and cut off one figure to the right of the product; the other will
represent the number of bushels of shelled corn.
3d. Multiply length by height, and then by width, add two ciphers to
the result and divide by 124; this gives the number of bushels of ear
corn.