. The Roentgen rays in medicine and surgery as an aid in diagnosis and as a therapeutic agent : designed for the use of practitioners and students . Fig. 320. Augusta G., forty-five years of age. From same patient as Fig. 319. Shows loss of bone substance in phalanges. The special difficulties lie in so arranging the apparatus as to obtain thebest differentiation, and in the correct reading of the radiograph, par-ticularly in cases where the disease is beginning and only a small focusis affected. The changes in the outline and thickness of the bones, ofthe periosteuM, in the cancellated struct
. The Roentgen rays in medicine and surgery as an aid in diagnosis and as a therapeutic agent : designed for the use of practitioners and students . Fig. 320. Augusta G., forty-five years of age. From same patient as Fig. 319. Shows loss of bone substance in phalanges. The special difficulties lie in so arranging the apparatus as to obtain thebest differentiation, and in the correct reading of the radiograph, par-ticularly in cases where the disease is beginning and only a small focusis affected. The changes in the outline and thickness of the bones, ofthe periosteuM, in the cancellated structure of the bones, in the amountof rays absorbed by the tissues, should all be carefully studied in theradiographs. A well-made radiograph may be defined as one whichshows the details of the bones, and also of the soft parts, such as skin, 560 THE ROENTGEN RAYS IN MEDICINE AND SURGERY. Fig. 321. Osteitis of tibia and fibula. Fracture of fibula. DISEASES OF THE BONES AND OF THE JOINTS 561 fatty tissues, muscles, tendons, and in some cases normal arteries, withsurprising clearness. I regret that the beautiful detail shown bythem cannot always be reproduced by any method that it is practicable
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