quartette that is responsible for nine-tenths of the stops.

Beyond eight or ten horse-power the single cylinder is hardly
practicable. The kick from the explosion is too violent, the
vibration and strain too great, and power is lost in transmission.
But up to eight or ten horse-power the single-cylinder motor with
a heavy fly-wheel is practicable, runs very smoothly at high
speeds, mounts hills and ploughs mud quite successfully. The
American ten horse-power single-cylinder motor will go faster and
farther on our roads than most foreign double-cylinder machines of
the same horse-power. It will last longer and require less
repairs.

The amateur who is not a pretty good mechanic and who wishes to
tour without the assistance of an expert will do well to use the
single-cylinder motor; he will have trouble enough with that
without seeking further complications by the adoption of multiple
cylinders.

It is quite practicable to attain speeds of from twenty to thirty
miles per hour with a single-cylinder motor, but for bad roads and
hilly countries a low gear with a maximum of twenty to twenty-five
miles per hour is better. The average for the day will be higher
because better speed is maintained through heavy roads and on up
grades.

So far as resiliency is concerned, there is no comparison between
the French double-tube tire and the heavy American single tube,
--the former is far ahead, and is, of course, easily repaired on the
road, but it does not seem to stand the severe wear of American