The undulatory theory of light also assumes the existence of a medium.
At Fontana, however, the undulatory shock was replaced by a vertical one.
This undulatory movement, as it is called, pushes the fish's body ahead.
In the air they are readily distinguished by their undulatory flight.
It certainly coincides with the "undulatory wave" theory of Science.
Then Mr. Wilmot, making his pontifical and undulatory adieu, passed on.
An earthquake is a vertical vibration, having an undulatory progression.
(uttered in his undulatory accents, and with an appraising, pondering gaze at her).
According to the undulatory theory, light is thus refracted.
Because the undulatory motion of their muscles serves them for fill the purposes of progression needed by their mode of life.