![Discussion on ¿On some instruments for the measurement of electro-motive force and electrical power¿, by Dr. J.A. Fleming and C.H. Gimingham, Esq., and ¿Portable voltmeters for measuring alternating potential differences¿, by Professors W.E. Ayrton and John Perry]()
Discussion on ¿On some instruments for the measurement of electro-motive force and electrical power¿, by Dr. J.A. Fleming and C.H. Gimingham, Esq., and ¿Portable voltmeters for measuring alternating potential differences¿, by Professors W.E. Ayrton and John PerrySiemens, Alexander; Bright, Charles T.; Gordon, J.E.H.; Cardew, P.; Esson, E.B.; Evershed, Sydney; Swinburne, J.; Armstrong, R.Y.; Gimingham, C.H.; Sankey, H.R.; Spagnoletti, C.E.; Gümpel, C.G.; Fleming, J.A.; Ayrton, W.E. · 1887