The term theory of heat, being associated with either vibratory motion or energy, was generally used in contrast to the caloric theory, which views heat as a fluid or a weightless gas able to move in and out of pores in solids and found between atoms.
12.
The annual meeting of the Company's stockholders on 13 December 1882 heard a report from Boekel in which he stated that what Keely claimed to have discovered was " the fact that water in its natural state is capable of being, by vibratory motion, disintegrated so that its molecular structure is broken up, and there is evolved therefrom a permanent expansive gas or ether, which result is produced by mechanical action ".