American practice of surgery : a complete system of the science and art of surgery . Fig. 192.—To illustrate undeveloped plate (only 6 minutes). Compare with Fig. 193, wliich wasdeveloped 6 minutes longer. (Original.). Fig. 193.—Taken under ixactly same conditions as Iig. 192, but development was carried muchfurther. Developed 12 minutes. (Original.) THE TECHNIQUE OF RADIOGRAPHIC WORK. 621 the great causes of i)oor plates (Figs. 185-192). It is of advantage to knowthe principles of photography, to know that the plate is coated with gelatin, thatthe agent acted iijxjn by the light or .r-ray is
American practice of surgery : a complete system of the science and art of surgery . Fig. 192.—To illustrate undeveloped plate (only 6 minutes). Compare with Fig. 193, wliich wasdeveloped 6 minutes longer. (Original.). Fig. 193.—Taken under ixactly same conditions as Iig. 192, but development was carried muchfurther. Developed 12 minutes. (Original.) THE TECHNIQUE OF RADIOGRAPHIC WORK. 621 the great causes of i)oor plates (Figs. 185-192). It is of advantage to knowthe principles of photography, to know that the plate is coated with gelatin, thatthe agent acted iijxjn by the light or .r-ray is principally silver bromide, andthat the richer the plate is in this silver salt the better the plate will be, otherthings being equal. For this reason, although ordinary photographic platesmay be good enough for fractures and gross lesions, for the finer work theyare not to be compared with the special .r-ray plates (see illustrations and 195). Description of Dark-room. A well-ventilated room from which all white light can be excluded is neces-sary. A single ray of white light may be responsible for poor results by actingon the photographic plate dming the process of development. After a room KALEVIM
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Keywords: ., bookauthorbuckalbe, bookcentury1900, bookdecade1900, bookyear1906
