114 INDEX 
Density of current, importance of, 76. 
Edelmann method of measuring induction shocks, 20. 
Electrodynamometer of Hoorweg-Giltay, 21. 
Electrode contacts, effect of on strength of shocks, 13, 76. 
Electrodes, needle, 27. 
Sherrington, 27. 
Extra current, 10. 
Faradimeter of Edelmann, 20. 
Fick-Meyer method of measuring induction shocks, 15. 
v. Fleischl method of measuring induction shocks, 18. 
application of, to calibration, 56. 
Force, lines of, 5. 
Galvanometer, ballistic, 26. 
Hoorweg-Giltay method of measuring induction shocks, 21. 
Induced current, direction and intensity of, 5. 
form of, 8. 
break, course of, 32. 
make and break, 7. 
measurement of, historical, 14. 
method of varying, 7. 
sources of variation in, 13. 
Inductance, 8. 
of secondary coil, 34. 
determination of, 50. 
equation for, 53. 
Induction, discovery of, 2. 
mutual, 34. 
determination of, 38. 
relation of to calibration, 36. 
Induction coil, standard, for use in calibration, 26. 
structure of, 3. 
Induction shocks, apparatus for quantitative use of, 30. 
break, course of, 32. 
