What is that to-and-fro between one who knows and one who does not?
With this was sent a whip, thus establishing a to-and-fro communication.
The to-and-fro movement of the slide is effected in the following manner.
We will suppose our pendulum to execute one to-and-fro movement in a second.
Back again he came, to-and-fro like the pendulum of a clock.
Both the milk and ...