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 the water chambers were provided with mechanical agitators having a to-and-fro movement.
Then suddenly upon this long period of to-and-fro, there fell (as it were) the very calmness of reconciliation.
This advance from to-and-fro to rotary action extended irresistibly to steam as a motive power.
The stirrup now performs a to-and-fro movement at the oval window, passing the auditory impulse inwards to the internal ear.
Meseemeth that Sir Siegfried / full many a to-and-fro Did ride with his good followers / along 'fore many a tent.