The Practitioner Volume 70

The Practitioner Volume 70

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1903 edition. Excerpt: ...other there was no effect, but the patient only had a few exposures at rather long intervals. In the case of cheloid treated by us the result was unsatisfactory. LIGHT AND X-RAYS. The employment of light and Roentgen rays as therapeutic agents has now to a large extent passed out of the experimental stage; and although we are far from knowing. the full range of their possibilities, their applicability and usefulness in certain conditions must be looked upon as fully established. The literature of the subject is fast becoming voluminous, and we hope by the comparison of our results with the work of others to help in the formation of a trustworthy induction from the facts which have been collected. These facts require to be carefully sifted, as the observations of workers do not altogether agree, either as to the methods of applying the light and the X-rays, or as to the indications for their therapeutic employment. On account of the loose way in which the terms " light " and " Finsen " treatment are used by many writers, it is necessary to state at the outset what these terms imply and to describe briefly the principal distinguishing features of the various methods of applying light for therapeutic purposes. In the first place the X-rays should not be included under the term light-treatment. They have nothing to do with light in the ordinary sense of the word. They are not on the visible spectrum and have not the physical properties of light such as refraction, polarization, reflection, &c. (the temi " focus" applied to tubes is misleading. The X-rays cannot be focussed: the cathode-rays impinging on the anodal plate are deflected, not reflected, from it. The point we wish to emphasise is that, for...show more

Product details

  • Paperback | 316 pages
  • 189 x 246 x 17mm | 567g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236897870
  • 9781236897879