Nikola Tesla Books
THE ALTERNATING CURRENT or hyper tension is indicated. After the examination has been made and the treatment prescribed, there is no reason why the actual administration should not be given by the layman if the physician keeps a watchful eye on the progress at suitable intervals between treatments. The Generation of Ozone and the X-Ray.-For the physician or the experimenter, there is perhaps no form of X-Ray apparatus better adapted to light office or laboratory use than the high frequency coil. It is safe, convenient and powerful and for all cases where very short exposures through the heavier portions of the body are unnecessary, it will meet the requirements, admirably. True, the X-Ray is never quite safe in the hands of anyone other than a skilled operator having years of experience on his shoulders. The ray generated by a tube excited with a high frequency current is, however, less liable to produce the characteristic burn than is that produced by any other means. Just why this is so, is not definitely known, but the experience of the past few years indicates beyond a doubt the truth of the statement. A high frequency coil to produce an eight-inch spark of a quality adapted to light X-Ray work can be built in the home workshop at only a fraction of the cost of an induction coil to do the same work. Furthermore, the high frequency apparatus is simple in construction and operation and it can be depended upon to do its work without the annoying delays incident to the usual induction coil with its troublesome interrupter and the ever-present danger of a serious breakdown of the insulation. As a generator of ozone for medicinal purposes, the high frequency coil is particularly energetic and efficient. When the discharge terminals of the coil are separated beyond the normal sparking distance, great volumes of ozone are liberated in the space filled with a crackling brush dis
