uilding several stories high would answer perfectly,
since quick-hoisting elevators could be put in and the tracks on each
floor have wire connections with the dynamos, so that the cars could
be run across the floor to where you please, facilitating storage and
dispensing with handling. This would not be possible with the cable.

Comparing electricity and cable on this point, all things favor the
former clearly and beyond all question. Furthermore, if locality so
favored, the subject of land purchase for electricity could be tabooed
entirely, since distance can be so readily overcome. Way out in the
suburbs or back in the country by the side of some waterfall, your
station might be, while the current is sent to the great city over
heavy conductors. Here land rent or tax would be at the minimum. With
horses or cable plainly proximity must be had. It is estimated that
the land occupied by the Madison Avenue line of New York City is worth
the cost of 40 miles of ordinary double track.

3d. Equipment at station and rolling stock.

The rolling stock would be in each case approximately the same.
Consisting of cars of equal seating capacity, the difference of cost
would be the necessary attachments for the mechanical systems.

A first class 16 foot horse car costs $1,200;
A first class 16 foot cable car costs about $1,800; and
A first class 16 foot electric car costs about $2,200.
Rates: Electricity, 1; horse, 0.54; cable, 0.81.

I believe, however, that the mechanical system is bound to work
material changes in car construction, in fact it is almost imperative.
In all probability a car with 15 to 20 per cent. greater seating
capacity than the horse car can be constructed on a different plan for
the price given for the electric car. This price, it must be noted, is
the one for attachment of motor to the present horse car. The horse
cars produced to-day are most carefully planned, thoroughly built, and
admirably adapted to their service, but the inexorable law of progress
decrees their extinction, for something better.

Motive power. To represent clearly the costs, etc., of the three
systems under this head, let us assume a road. Take, if you please, a
double line 6 miles long, and operating 24 cars with speed of 6 miles
an hour, and running 20 hours out of 24. This would call for 48 horses
on the track and 192 horses in the stables, or a total of 240 horses;
at $160, counting harness, etc., this would cost $38,40