If there is no session, you can view the empty chamber without a pass.

Some left an empty chamber under the hammer, but not me.

They came to another great empty chamber, much like the first.

Take him to an empty chamber, he must be attended at all times.

We were in the middle of a large, empty chamber.

Probably all empty chambers, of course, but you can never tell.

It was approved by voice vote in a nearly empty chamber.

Save for the sound of the hammer coming down on an empty chamber, nothing happened.

The picture of an empty chamber appeared in his mind.

At last we came to a large, quiet empty chamber.