Let us begin by considering the most mag[Pg 136]nificent and constant exhibition of that Law—Gravitation. Gravitation is the Riddle of the Universe, and the one form of Energy that balks Science—so much a mystery that Science does not even hazard a "guess" at its nature—no theory of the origin and nature of Gravitation is to be found in "the books." Let us see what Gravitation is.
