ustment having the existing conditions. the fluorometer admits of pro- of foreign substances in the human organism; and it is ducing in the form of a fluorograph exactly the condi- been made, a correct line is produced with the sights also well known that, while many brilliant operations tions,… … of the rays. It was at once realized that, if this shadow fluorometer, the second observation is taken. For con- Fig. 1—-THE FLUOROMETER—TABLE AND GRATING. was to be an aid in surgery, the distortion caused not venience in using the fluoroscope a section of the top of only by the angle of rays but…
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