PT - JOURNAL ARTICLE AU - John Trowbridge AU - H. V. Hayes TI - Production of alternating currents AID - 10.2475/ajs.s3-29.173.377 DP - 1885 May 01 TA - American Journal of Science PG - 377 VI - s3-29 IP - 173 4099 - http://www.ajsonline.org/content/s3-29/173/377.short 4100 - http://www.ajsonline.org/content/s3-29/173/377.full SO - Am J Sci1885 May 01; s3-29