Publisher's Synopsis
Excerpt from Invention and Discovery
A recent wonder of electric art is its penetration by a photographic ray of substances until now called opaque. Professor Rontgen's account of how he wrought this feat forms one of the most stirring chapters in the history of science. Next follows an account of the telegraph as it dispenses with metallic conductors altogether, and trusts itself to that weightless ether which brings to the eye the luminous wave. To this succeeds a chapter which considers what elec tricity stands for as one of the supreme resources of human wit, a resource transcending even ?ame itself, bringing articulate speech and writing to new planes of facility and usefulness It is shown that the rapidity with which during a single century electricity has been subdued for human service, illustrates that progress has leaps as well as deliberate steps, so that at last a gulf, all but infinite, divides man from his next of kin.
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