pace back and forth

pace back and forth

 and pace up and down
to walk over and over the same short route nervously or anxiously. The leopard paced back and forth in its cage. I paced up and down, worrying about a variety of things.
See also: and, back, forth, pace
References in classic literature ?
As assassination is the one thing to be feared, the proprietors of the hostelries furnish armed guards, who pace back and forth through the sleeping-rooms day and night.
The guards who watch the women remain in the corridor outside the sleeping chamber, while female slaves pace back and forth among the sleepers within, ready to notify the warriors should their presence be required.
With an angry toss of his head, the ape-man turned upon the two lions who had continued to pace back and forth a few yards from him.