None
specification of, 33 of magnetic shell. 44 for two circuits, 173 characteristic equation of, 175 VERDF.T, constant, 226 determination of, 767 Vibrator Hertz's electrical, theory of, 774—785 experiments with VILLARI, critical value of magnetizing force, 740 Viscosity, magnetic, 746 Lord Rayleigh's experiments, 746 Ewing's experiments, 747 Volt, unit of E.MF.,526 Voltmeters, graduation of, 429 — 437 Watt, or unit of electrical activity, D3'2 WEBER. W., molecular theory of mag- netism, 56 electromagnetic experiments, 131 method of recoil, 396 absolute measurement of resist- ance, 550 WIEDKMANN, G., aperiodic galvano- meter, 376 determination of the ohm, 551 Zollner, determination of the ohm. 5f.l Zonal harmonics, 821 (App.) THE END. RICHARD CLAY AND SONS, LIMITED, LONDON AND BUNGAV THIS BOOK IS DUE ON THE LAST DATE STAMPED BELOW AN INITIAL FINE OF 25 CENTS WILL BE ASSESSED FOR FAILURE TO RETURN THIS BOOK ON THE DATE DUE. THE PENALTY WILL INCREASE TO SO CENTS ON THE FOURTH DAY AND TO $I.OO ON THE SEVENTH DAY OVERDUE. j SEP 20 1933 I SEP 21 1933 1 SEP 22 m JA* 31 593,+ SEr #0 J93t c£p 2'2 1943 i S_iu!5 | UW / _. irr\^F"? gfefwm^z s • [ .. A(-y'.r\ StO^1^ s UNIVERSITY OF CALIFORNIA LIBRARY •'yVv^- ;'/'•-••*:* •;/>:w. 