‹‹‹ Vitr. 10.13.3 | Table of Contents | Vitr. 10.13.5 ›››
4He also used a ram on wheels, of which he has left a description in writing. He says that no tower should be built less than sixty cubits high, nor than seventeen wide, and that its diminution at top should be one fifth of the width of the base: that the upright pieces of the tower should be one foot and three quarters at bottom, and half a foot at top: that it should contain ten floors, with windows on each side.
4He also employed the ram mounted on wheels, an account of which he left in his writings. As for the tower, he says that the smallest should be not less than sixty cubits in height and seventeen in breadth, but diminishing to one fifth less at the top; the uprights for the tower being nine inches at the bottom and half a foot at the top. Such a tower, he says, ought to be ten stories high, with windows in it on all sides.