An elementary book on electricity and magnetism and their applications (1919)
Jackson, Dugald C. (Dugald Caleb), 1865-1951, Jackson, John Price, b. 1868, Black, Newton Henry, b. 1874 · New York, The Macmillian Co · leaf 644
Screen ofCalcium TungstateCrystals Fig. 429. — Fluoroscope, a light-tight box with fluorescent screen. … Fig. 430. — Radiograph of hand with gold ring on third finger.
Electricity · Magnetism
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