Rollins, William Herbert, 1852-1929 · Boston : The University Press · leaf 550
NOTE ii2 —FIGURE 87 —A VARIABLE POTEN-TIAL COIL WITH INTERCHANGEABLE SEC-ONDARY SECTIONS Plate 50 TERMINALS FOR USING INDUCED(V / CURRENT FgOM LEYDEN JARS_> (*P … NOTE ii2 —FIGURE 88 —A PHOTOGRAPH MADEWITH AN X-LIGHT TUBE HAVING A LOWRESISTANCE; NO SPARK-GAPS BEING USED NOTE ii2 —FIGURE 89 —A PHOTOGRAPH OFTHE SAME SUBJECT MADE WITH THE SAMETUBE; MULTIPLE SERIES SPARK-GAPS BE-ING USED Plate 51
X-rays · Phototherapy
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