he power
formed part of the car:

9,350 lb.
Electric car. --------- = 1.78
154 x 34

15,950 lb.
Rowan. ---------- = 2.30
154 x 45

22,000 lb.
Compressed air. ---------- = 2.55
154 x 56

The detached engines gave, of course, less favorable results under this
head.

Under head No. 15 the tractive power of all the motors was sufficient
during the trials, but the line was practically level, therefore this
question could only be resolved theoretically, so far as these trials
were concerned, and the table before given affords all the necessary data
for the theoretical calculation.

As regards the rapidity with which the motors could be brought into use
from standing empty in the shed, the electric car could receive its
accumulators more rapidly than could the boiler for heating the exhaust
of the compressed-air car be brought into use.

As regards the steam motors, the following were the results from the time
of lighting the fires:

The Rowan--
In 34 minutes 3 atmospheres.
" 36 " 4 "

At this pressure the vehicle could move--

In 40 minutes 8 atmospheres.

The Wilkinson--
In 35 minutes 2 atmospheres.
" 40 " 4 "
" 44 " 6 "
" 47 " 8 "

The Krauss machine required two hours to give 6 atmospheres, which was
the lowest pressure at which it could be worked.

The results under No. 17, viz., the fewest interruptions to the daily
service, class the motors in the following order: Krauss, electric,
Rowan, Wilkinson, compressed air. The chief cause of injury to the
compressed air motor arose from the carelessness of the drivers, who
allowed the steam boiler to be burnt out. Unfortunately, these drivers
were new to the work.

Under the letter C are classed considerations of economy in the
consumption of materials used for generating the power necessary for
working.

19. Minimum consumption of fuel (either coke or coal),
in proportion to the number of kilometers run, and
to the number of places, assuming for the seats a
width of at least sixteen inches for each person seated.

It must be borne in mind that the conditions of the competition required
that a second car