. The Street railway journal . directly across the station bus without the field rheostat inseries with it and reverses the field. When this is accom-plished the switch is thrown up. The equalizer and negativebusses are located in the passage directly beneath the are no negative wires on the main switchboard exceptthe instrument potential wires and those necessary for boardlights. The boosters are switched in with the battery on the negativeside. The necessary switches are located on two isolated FIG. 7.—COMMON ARRANGEMENT OF BOOSTER.

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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884