American practice of surgery : a complete system of the science and art of surgery . imary and secondarv annneter reading and length of spark resistance,which resistance we do not consider absolute, as so many conditions affect 188-191 illustrate the value of this method for estimating the radio-graphic value of :r-ray tubes. Development of Plates. One of the reasons for poor results is failure properly to develop the is not necessary that the operator should be an expert photographer in orderto get good radiographs, and the i)ractice of sending .r-ray plates to the pro-fess
American practice of surgery : a complete system of the science and art of surgery . imary and secondarv annneter reading and length of spark resistance,which resistance we do not consider absolute, as so many conditions affect 188-191 illustrate the value of this method for estimating the radio-graphic value of :r-ray tubes. Development of Plates. One of the reasons for poor results is failure properly to develop the is not necessary that the operator should be an expert photographer in orderto get good radiographs, and the i)ractice of sending .r-ray plates to the pro-fessional photographer to be developed is to be condemned. The writersexperience has led them to adopt certain routine methods of developmentwith standard formula? and usually standard time, so that a man of little expe-rience in this line of work can be sent into the dark-room with a strong likeli-hood that he will invariably get good results. The professional photographerusually underdevelops .r-ray plates, and hence underdevelopment is one of the 620 ami:ricax practice of Fig. 192.—To illustrate undeveloped plate (only 6 minutes). Compare with Fig. 193, wliich wasdeveloped 6 minutes longer. (Original.)
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Keywords: ., bookauthorbuckalbe, bookcentury1900, bookdecade1900, bookyear1906
