. Electro-therapeutics and X-rays . y insulated surface. This form of electricityis also known as franklinism, so called in honor of Benja-min Franklin, one of the earliest to thoroughly investigateand to give prominence to it; also termed frictional, be-cause produced by friction. Static electricity was given to medicine about the year1750. It was brought to America by Benjamin Franklin 102 ELECTRICITY. about 1752. The modern Holtz induction machine is therepresentative source of static electricity to-day. From theearly literature we find that Benjamin Franklin used staticelectricity for medi
. Electro-therapeutics and X-rays . y insulated surface. This form of electricityis also known as franklinism, so called in honor of Benja-min Franklin, one of the earliest to thoroughly investigateand to give prominence to it; also termed frictional, be-cause produced by friction. Static electricity was given to medicine about the year1750. It was brought to America by Benjamin Franklin 102 ELECTRICITY. about 1752. The modern Holtz induction machine is therepresentative source of static electricity to-day. From theearly literature we find that Benjamin Franklin used staticelectricity for medical purposes; later John Wesley used thesame current extensively and treated large numbers success-fully. During the latter part of the century (1700) Cavalloexperimented largely and published all that was known atthat time upon the subject. From 1840 to 1850 it was usedwith great success in Guys Hospital, Loudon, by men ofhigh standing. From this time up to 1884 very little usewas made of this current in medicine. In the work upon. Fig. 3.—The First Static Electrical Machine. A ball of sulphurwas cast and mounted upon a revolving axis in a wooden frame and excitedby an application of the hands; the assistant so doing becoming the con-ductor for the positive current to escape. This primitive affair gave feeblesparks, which could only be seen in total darkness. Hawksbee later substi-tuted a globe of glass for the ball of sulphur and collected the positive elec-tricity upon a conductor suspended by silken cords from the ceiling, therebyobtaining more satisfactory sparks with the positive electricity thus gen-erated. medical electricity by Erb, published in this country in 1883,we find the following: Experiments, even the-latest ones inParis, have furnished no satisfactory results, and staticelectricity has still to conquer a secure place in electro- STATIC ELECTRICITY. 103 therapeutics. Within the past ten years static electricityhas, as all electro-therapeutists must admit, co
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