in and called an _ interrupter. a uniform manner, over the This instrument, which is de- duration of the motion ob- signed for medical uses, gives served, whatever be the dura- more or less frequent inter- tion of the latter, from a frac- ruptions in a unit of time. tion of a second up to one or By… … tervals, according to the ve- parallel with the cylinder, so locity of the motion observed. as to appear before such or Lastly, it may be useful ir such a concentric circle, thus the study of certain difficult permitting of a determinate cases (for seizing, for example, number of contacts being the…
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