If Plato could have witnessed the pictures executed by the sun with the assistance of the photographer, or a hundred similar illustrations of what man does by induction, he would perhaps have been reminded of the intellectual midwifery of his master and, in his own mind might have arisen the vision of a land where all manual, mechanical labor and repetition is assigned to the power of nature, where our wants are satisfied by purely mental operations set in motion by the will, and where the supply is created by the demand. However distant that land may appear, induction has taught men to make strides toward it and has surrounded him with benefits which are, at the same time, rewards for past fidelity and incentives for more assiduous devotion. It is also an aid in concentrating and strengthening our faculties for the remaining part, giving unerring solution for individual as well as universal problems, by the mere operations of mind in the purest form. Here we find a method, the s...