Authors:

The first step to be taken, is to study carefully the fundamental phenomenon above described, and to examine all the various circumstances under which it presents itself.

John Farrar, Jean-Baptiste Biot, César Mansuète Despretz (1839). “Elements of Electricity, Magnetism, and Electro-dynamics: Embracing the Late Discoveries and Improvements, Digested Into the Form of a Treatise : Being the Second Part of a Course of Natural Philosophy, Compiled for the Use of the Students of the University at Cambridge, New England”, p.2
The first step to be taken, is to study carefully the fundamental phenomenon above described, and to examine all the various circumstances under which it presents itself.