"
"My word," Hamilton exclaimed, "what a storage you must have!"
"You ought to go down and see it some time," the other said. "It's big
enough, with every State and every county and every district in the
country having its own place, and every little village in that district
right where it belongs in a box of its own, under that State, county,
and district. I'm telling you this just to show you that we don't have
to sort the cards for location at all, and that in itself saves us a lot
of labor and time."
"And they were sorted into sexes on the punching machine, I remember,"
Hamilton remarked.
"Yes, and that prevents another handling of every card, you see," the
chief went on, "so that without any further special division, every card
is divided by village, district, county, and State, as well as sex, when
it leaves the punching machine From there it comes to the tabulating
machine--which is just the same as the verification, only instead of the
electrical connections being made through relays only, they are
sometimes made direct to counters."
"Just how, Mr. Cullern?" the boy asked.
"Well," the other continued, "when the pin, passing through the hole in
the card, drops into the little cup of mercury it closes a current
passing through an electro-magnet controlling a counter or a dial
corresponding with each possible item of information on the card, and
for each contact made to each dial, an added unit is registered.
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