"The light that emanates from a glow worm is the resultant of the action of the sympathetic medium of the insect on a center of phosphorescent matter, which is included in its structure. The resultant of the two conditions are quite different, but they are governed by the same laws of sympathetic percussion." Snell Manuscript
See Also
Center of Percussion
electromagnetic percussion
Laws
laws of sympathetic percussion
Molecular percussion
percussion
vitalized by percussion