The Roentgen rays in medicine and surgery as an aid in diagnosis and as a therapeutic agent : designed for the use of practitioners and students (1901)
Williams, Francis H. (Francis Henry), 1852-1936 · New York, Macmillan · leaf 56
Fig, 16. Heinze electrolytic interrupter, Ritchie coil, and tube. … Fig. 17. Adjustable multiple spark-gap on Ritchie coil, as arranged by Rollins, ,Sand 7, terminalsof coil; U, ball on end of spark-gap rod C\ R, row of brass balls on strip of mica; J, wire tovacuum tube, (Rollins.) 26 THE ROENTGEN RAYS IN MEDICINE AND SURGERY
Radiography · X-rays
Internet Archive · Boston Public Library · Public Domain Mark 1.0. Free to use for anything.
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