His way lying through many streets, and the houses not yet being open, he sits down to breakfast on the doorstep of the Society for the propagation of the Gospel in Foreign Parts, and gives it a brush when he has finished, as an acknowledgment of the accommodation.
"Dickens As an Educator"
James L. (James Laughlin) Hughes
Associated with these physical actions above ground, there is a propagation through the earth of electric action, which may consist in a motion or atomic exchange of electrons.
"Hertzian Wave Wireless Telegraphy"
John Ambrose Fleming
In the earth, there is a propagation of electric oscillations; in the space above and between the aerials, there is a propagation of electric waves.
"Hertzian Wave Wireless Telegraphy"
John Ambrose Fleming