. 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 . Plate 206.—Showing adjustment to focus chemical rays on small area of cheek.
. 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 . Plate 206.—Showing adjustment to focus chemical rays on small area of cheek. Patientwears spectacles to jirotect eyes from glare. The water-bags keep a continuous flow of coldwater through the filter seen just in front of the lamp-hood. The concentration lens nearpatients face adjusts on sliding arms to the required ^ 2
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Keywords: ., bookcentury1900, bookdecade1900, bookidsystemofinst, bookyear1902
