The men forced their way through parts of the dense mass by strength.

A dense mass of three great trees darkened the road ahead, and they marched into it.

And there to the left, where the road curves over the hill, mark you that dense mass of men!

The problem was that the lenses needed to focus on a target of very dense mass.

They came on in the same dense mass as before.

The great tree was a dense, tangled mass of branches beneath her.

Persons of every class are crowded together, here, in one dense mass.

These outlines eventually come together to form a dense mass.

The result is a dense, tangled mass, all but impossible to penetrate.

There were no gaps to be seen in that dense mass of wood.