14. From the base at ground level to the lower ledge is forty-two inches; the lower ledge is twenty-one inches wide. The distance from the lower to the upper ledge is seven feet; the upper ledge is twenty-one inches wide.
15. The hearth is seven feet high, with four horns projecting upward from the hearth.
16. The hearth is twenty-one feet square; each side is equal to the others.