“Fig. 95 shows an outside view of an ampère meter made by the Edison-Swan Co.” (p. 220) The units for measuring electric current today are called amperes, or amps, and a device for measuring current i [...]
“Figs. 27 and 28 show switchboards suitable for use on board ship. Fig. 27 shows the usual arrangement of circuits on board a “tramp.” It will be understood, of course, that there should be an ampère [...]
