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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 View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: Plate 131.—Stone in the Bladder. The electrotj-pe shows scarcelj any of the fine detailof the original negative. It is, however, inserted here to point out that no practitioner should form his opinion ofradiography from the ordinary blotches of vcell-nigh meaningless ink that figure as copies ofsuperb negatives in the hasty presswork and coarse paper of ordinary medical journals. Theybear little relation to real radiography. Text Appearing After Image: Plate 132.—Vesical Calculus by Mackensie Davidson. This radiograph was made priorto July, 1897, and the technic was as follows: The jiatient was placed face downward on arapid film wrapped in two folds of black sateen cloth under the pelvis. The posture was suchthat the stone would fall to the front wall of the bladder and thus come nearest the film.The tube was so placed that the rays should pass obi quely through tlie pelvis and avoid theintervention of the bones. The result shows the shadow of the calculus, which was estimatedby the operator to measure 3.4 centimetres diameter. The actual measure was 3.1. The exactdistance of tube and time of expo.sure are not stated. The loss of fine detail in the half-tonegreatly lessens the value of the illustration. (Rebman, Ltd.) STUDIES m THE X-RAY DIAGNOSIS OF CALCULI 311 to maintain ordinary respiration. The repeated movements of theribs, the soft parts in general, and, possibly, to some extent of thekidneys themselves, would blur out the Note About Images 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.

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