d of the fluorscope a shadow isthrown upon it and is visible to the human eye.It was invented by Edison who discovered thatplatino-cynanide of barium had the property offluorescence and was the salts originally used.He has since substituted the tungstate ofcalcium which he found has the same… … 64 SOMETHING ABOUT X RAYS Fig 40 shows the fluorscope in use, the experi-menter is making an examination of his hand.To use this device most successfully you musthave a good strong current and an inductioncoil giving not less than a spark of four inches. An X Ray Meter. The peculiar glow exhibited…
X-rays · Fluorescence
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