. American X-ray journal . concerning the taking of skyagraphs whichseem to be unknown to all the expertswhom I have had the pleasure of visitingor conversing with, viz: While in the actof taking a skiagraph it is a simple matterto watch the impression made upon theplate (negative) or watch its formation bycrawling under the table and placing thefluoroscope immediately against the undersurface of table, and looking upwards. Ialways have my nurse or assistant makethe observation and when the skyagraphor negative seems plain and distinct, thex-rays are discontinued. This not only THE AMERICAN X-
. American X-ray journal . concerning the taking of skyagraphs whichseem to be unknown to all the expertswhom I have had the pleasure of visitingor conversing with, viz: While in the actof taking a skiagraph it is a simple matterto watch the impression made upon theplate (negative) or watch its formation bycrawling under the table and placing thefluoroscope immediately against the undersurface of table, and looking upwards. Ialways have my nurse or assistant makethe observation and when the skyagraphor negative seems plain and distinct, thex-rays are discontinued. This not only THE AMERICAN X-RAY JOURNAL- 717 saves time but saves many negatives alsoand renders obsolete the question of sec-onds or minutes in making truly yours, N. C. Morse, M. the Wehnelt interrupter has beensuccessfully employed to increase radiantenergy with a coil the following mattertaken from Vol. 1, No. II. of the AmericanX-ray Journal may be of interest. Theswitch has been used very little with staticmachines.— Within a few months following announcement of the x-rayphenomenon the editor of this journal hadconstructed a Tesla high-frequency coil forx-ray work. It was the first apparatus ofthe kind made for this purpose. Constantapplication of the instrumentto fluoroscopyand skiagraphy revealed a want and im-perfection in the picturing. It was this faultwhich caused us to conceive of a method for its improvement. The fluoroscopeand switch in handle herein shown wasmade by an Eastern concern on receipt ofthe following from us: St. Louis Mo., July 20, E. Knott Apparatus Co., Boston, Mass. Gentlemen.—The power of the Roentgenrays is at present all that is required, butsome method of utilizing it to better ad-vantage is demanded. Radiographic pictures as well as fluoros-copic views of the softer structures areessential. It is impossible to get a good picture of atumor, or of any consumptive area, or ofany fleshy induration with any existingdevice
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