English: Plate 11 is of left kidney, and in the original plate the outline of the kidney is clearly shown, and indicates an enlarged left kidney, containing one large and four small calculi

Identifier: americanquarterl02amer (find matches)
Title: American quarterly of roentgenology
Year: 1909 (1900s)
Authors: American Roentgen Ray Society
Subjects: Nuclear Medicine Radiography Radiology Radiology
Publisher: Pittsburgh : American Roentgen Ray Society
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and the National Endowment for the Humanities

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ethod of development, called the factorialmethod, and the uses of the exposure meter in photography alldepend upon the temperature of the developer being within acertain limit of a prearranged standard. If this be not main-tained all calculations are thrown out and the elaborate tablesand exposure meters rendered valueless. Finally, those of us who have made valuable lantern slidesfrom our pet negatives, or who keep all their records in theform of lantern slides to save space and weight, are in constantdanger of having their best results spoiled by the heat of theprojection lantern. Each lantern should of course have awater bath for the protection of the slides, but few do havesuch an arrangement. Xow were the slides absolutely drywhen in the lantern all would be well, for the length of timeany slide is thrown upon the screen would not normally beenough to do harm. But gelatine is hygroscopic, the air isfull of moisture and slides are seldom varnished. 11 East 48th St., New York City.
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Fig. 11

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