Popular science monthly . en ninety thousandroll-calls. It would gi\e Congress two At left: Themechanical voterreduced to a de-monstrable sizewith batteries andconnections for acommittee exami-nation. It is reallya form of telegraphwith many key-boards umdreil \ears work to call the roll thatmany times. The inventor, BorncttL. BobrolT, of Milwaukee, Wisconsin,has installed his .system in the StateLegislature of Wisconsin, and it isgiving excellent service there. In asingle session of Congress he .siys hecan lop off thirty da>s work by callingthe roll with his machine. ICach member \otes by
Popular science monthly . en ninety thousandroll-calls. It would gi\e Congress two At left: Themechanical voterreduced to a de-monstrable sizewith batteries andconnections for acommittee exami-nation. It is reallya form of telegraphwith many key-boards umdreil \ears work to call the roll thatmany times. The inventor, BorncttL. BobrolT, of Milwaukee, Wisconsin,has installed his .system in the StateLegislature of Wisconsin, and it isgiving excellent service there. In asingle session of Congress he .siys hecan lop off thirty da>s work by callingthe roll with his machine. ICach member \otes by pressing abutton on the desk in front of him. Heand everybody else can see how hevoted, as his vote duplicates itself on alarge board within tlie \-iew of all. also totals the \ote the e\ent that a member wishes toseand the total of .ind na\s isaccordingly lorrected on ilu 582 Popular Srirnrr Monf/ih/
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1872
