. American X-ray journal . FIG. 5. 364 THE AMERICAN X-RAY JOURNAL. possible, with certainty, by means of theRoentgen rays. Fig. 4 the appearance after resectionand removal of the diseased bone. Fig. 5 illustrates a typical tubercularknee in a little girl. The radiogram of the elbow, Fig. 6,one of many, illustrates the thickeningin fractures through the condyles. Afteran experience in making over five hun-dred radiograms, it might be formulated,that the younger the subject, the shorter. fig. b. the exposure. The results we have ob-tained can be equaled by any one; prob-ably surpassed by many, s
. American X-ray journal . FIG. 5. 364 THE AMERICAN X-RAY JOURNAL. possible, with certainty, by means of theRoentgen rays. Fig. 4 the appearance after resectionand removal of the diseased bone. Fig. 5 illustrates a typical tubercularknee in a little girl. The radiogram of the elbow, Fig. 6,one of many, illustrates the thickeningin fractures through the condyles. Afteran experience in making over five hun-dred radiograms, it might be formulated,that the younger the subject, the shorter. fig. b. the exposure. The results we have ob-tained can be equaled by any one; prob-ably surpassed by many, so no claim ismade for superior knowledge of the sub-ject. Our object will be obtained ifthese hurried jottings lead others intothe field. 3147 Washington Avenue, St. Louis, Mo. [From June Number (Vol. XI.) Annals of Gynecology andPediatry. Boston.] Rotation of Cathode Rays. , No. 6 ; abstracted brieflyin Lond. Elec, July 8.—A thin bundleof cathode rays strikes a fluorescentscreen at the end of a vaccum tube ; abar magnet penetrates through the vac- uum through this screen and is protectedby a glass tube, the rays then form aring around the bar magnet. He inves-tigated whether this ring represents theinfluence of cathode ra*ys, which are in astate of rapid rotation around the pole;several tests showed that there was noevidence of rotation. Examination of Coal hy Eng. and Min. Jour., July 2.—A brief abstract of a French Academypaper. He states
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