But in all cases the dim vast mass had vanished quickly and left no trace.

He felt the vast mass dropping, taking him with it.

How does a researcher sort through the vast mass of material available?

What did he really care for the vast, faceless mass?

They joined again to two vast masses that charged for the wall.

Behind them another vast mass appeared over the low ridge in the centre of the plain.

The vast mass of the people simply could not understand the new legal system; its spirit and scope were quite alien to them.

The whole vast mass of them wavered for a moment.

But the vast mass of the rural population remains impoverished.

What do they feel about the vast mass of China's population?