down for the
purpose in the city of Antwerp, carried along the boulevards from near
the main entrance of the exhibition to the vicinity of the principal
railway station, a distance of 2,292 meters.

The line ended in a triangle of 505 meters, in order that those motors
which required to run always in the same direction should be enabled to
do so.

Out of the whole length of the line, viz., 2,797 meters, 2,295 meters
were in a straight line, 189 meters in curves of 13/4 chains radius, and
313 meters in curves of 1 chain radius. There were on the line four
passing places, besides a passing place at the terminus; these were
joined to the main line by curves of 13/4 chains radius.

The line was practically level, the steepest incline being 1 in 1,000;
this circumstance is somewhat to be regretted, but the city of Antwerp
afforded no convenient locality where a line with steep gradients could
have been obtained. The motors were kept in sheds close to the
commencement of the line of tramway near the exhibition, where all
necessary cleaning and such minor repairs as were required could take
place.

A regular service was established, according to a fixed time-table, to
which each motor was required to conform. Each journey was reckoned as
starting from the end near the exhibition, proceeding to the beginning of
the triangle, and returning to the starting point. An hour was allowed
between the commencement of each journey, fourteen minutes were allowed
for a stoppage at the end near the exhibition, and eighteen minutes at
the other end--thus allowing twenty-eight minutes for traveling 2 miles
1,500 yards, or a traveling speed of about 6 miles an hour. The motors
were required to work four days out of six, and on one of the four days
to draw a supplementary carriage.

An official, assisted by a storekeeper, was appointed to keep a detailed
record--

1. Of the work done by each of the motors.
2. Of any delays occurring on the journey, and of the
causes of delay.
3. Of the consumption of fuel, both for lighting the
fires and for working.
4. Of the consumption of grease.
5. Of the consumption of water.
6. Of all repairs of whatever nature.
7. Of the frequency of cleaning and other necessary
operations required for the efficient service of the
motor.

The experiments lasted about four months. Five competitors offered
themselves, which may be classed as follows: Three were propelled by th