836 38. Elektrodynamik, Induction. BrilloüIN. Comparaison des coefficients d’induction. Paris 1886. Modification of JOUBERTS inethod of measuring coei'fi- cients of seif induction. Tel, J. and El. liev. 20, II. 497. W. E. Sumpner. The measurement of seil induction, mutual induction and capacity. The Electr. 18, II. ll, 10, II. 6; Lum. El. 20, 287-290. E. Hospitalier. Self-induction et capacite. L’Electr. 11, II. 225. R. Scharfhausen. Ueber die Messung des Coeffi- cienten der Selbstinduction. CBl. f. Electr. 0, II. 21. G. Kapp. Induction coils graphically trcated. The Electr. 18, II. 24; Tel. J. and El. Rcv. 20, II. 491. Rayleigh. The seif induction and resistance of com pound conductors. The Electr. 18, II. 8. The measurement of self-induction, mutual induction and capacity. Tel. J. and El. Rev. 20, II. 500. Self-induction and its measurement. Tel. J. and El. Rev. 21, II. 507, II. 508, II. 509, II. 511, II. 512 Sur une methode de mesure du coeffieient d’induction mntuelle de deux bobincs. L’Electr. 10, II. 191. 1886. Exner und Czermak. Ueber unipolare Induction. Exner Rep. 23, 72-79; Wien 1887, Gerold; ZS. f. Elektr. 5, II. 7; CBl. f. Elektr. 0, II. 6; (vergl. diese Ber. 42, p. 711). EULUND. Quelques remarques sur les considerations critiques de M. Luvini concernant la theorie de l’in- duction dite unipolaire. Lum. El. 25, 501-503. Hde. A. Neumayer. Die Laboratorien der Elektrotechnik und deren neuere 1 lilfsapparate. Eloktrot. Bibliothek 33; Wien 1887, A. Hartlcben. 231 pp.f Den Inhalt des Buches ersieht man leicht aus der folgenden Angabe der Hauptabschnitte: