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Identifier: systemofinstruct00mone
Title: A system of instruction in X-ray methods and medical uses of light, hot-air, vibration and high-frequency currents : a pictorial system of teaching by clinical instruction plates with explanatory text : a series of photographic clinics in standard uses of scientific therapeutic apparatus for surgical and medical practitioners : prepared especially for the post-graduate home study of surgeons, general physicians, dentists, dermatologists and specialists in the treatment of chronic diseases, and sanitarium practice
Year: 1902 (1900s)
Authors: Monell, S. H. (Samuel Howard), d. 1918
Subjects: Vibration X-rays Diagnosis, Radioscopic Thermotherapy Electrotherapeutics X-Ray Therapy Vibration Diagnosis
Publisher: New York : E.R. Pelton
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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Text Appearing Before Image:
s in the application of this principle. Here we utilize currentsinduced in the circuits formed by the mass of the human body. High-Frequency and high potential enables a current to pass onopen circuit as soon as the opposite polarities present a certain surface.Thus are explained the uni-polar currents and sparks which occuron touching a single point of the Solenoid. In this case the body ofthe patient constitutes an insulated surface which, at each oscilla-tion, receives a charge which is almost constant in quantity when thedistance from the solenoid is suitably adjusted for the treatment.The corresponding charge of opposite polarity is found upon thoseparts of the solenoid which are at a different potential at the samemoment. This explains the fact that the sparks obtained from asolenoid are greatest at its extremities and smallest at the middle ofthe turns. The lighting of lamps by these currents without contact is ex-plained by condensation effects. The glass plays the part of the

Text Appearing After Image:
Anti-Condensation Couch for High-Frequency Electrification. dielectric, the vacuum and the filament forming one of the electrodesand the moist skin the other. From these phenomena two other ofdArsonvals therapeutic methods are derived: local uni-polar applica-tions which require no special apparatus, and Auto-condensation, theprinciple of which is shown in the accompanying figure. The patient in this case constitutes one pole of a condenser, andthus a mean current of more than 100 milliamperes can easily bemade to traverse the human body. Practically all that is said aboveis familiar in practice to users of large Static machines which easilyproduce high-voltage effects. To those who use only ordinary coilcurrents the phenomena will seem new. The phenomena of resonance occur whenever a circuit pre-senting self-induction and capacity has the same frequency as thegenerating current. This fact results not only in interesting experi-ments, but in therapeutic applications. Without entering

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Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability – coloration and appearance of these illustrations may not perfectly resemble the original work.

Posted by Internet Archive Book Images on 2014-07-27 13:48:12

Tagged: , bookid:systemofinstruct00mone , bookyear:1902 , bookdecade:1900 , bookcentury:1900 , bookauthor:Monell__S__H___Samuel_Howard___d__1918 , booksubject:Vibration , booksubject:X_rays , booksubject:Diagnosis__Radioscopic , booksubject:Thermotherapy , booksubject:Electrotherapeutics , booksubject:X_Ray_Therapy , booksubject:Diagnosis , bookpublisher:New_York___E_R__Pelton , bookcontributor:Francis_A__Countway_Library_of_Medicine , booksponsor:Open_Knowledge_Commons_and_Harvard_Medical_School , bookleafnumber:954 , bookcollection:medicalheritagelibrary , bookcollection:francisacountwaylibrary , bookcollection:americana


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