We forced our way through it, finding it about forty feet long, and emerged into a third chasm.

This, too, was precisely like the first, except in its longitudinal shape, which was thus.
We found the entire length of the third chasm three hundred and twenty yards.

At the point _a_ was an opening about six feet wide, and extending fifteen feet into the rock, where it terminated in a bed of marl, there being no other chasm beyond, as we had expected.

We were about leaving this fissure, into which very little light was admitted, when Peters called my attention to a range of singular-looking indentures in the surface of the marl forming the termination of the _cul-de-sac_.

With a very slight exertion of the imagination, the left, or most northern of these indentures might have been taken for the intentional, although rude, representation of a human figure standing erect, with outstretched arm.