| | Concorde. | 9,980 | 6.5 | 6.0 | 0.5 | 1.5 | 3 |
|2| Total reseau | 18,500 | 6.9 | 5.9 | 1.0 | 1.5 | 6.3 |
|3|To Place de | | | | | | |
| | la Concorde | 9,980 | 7.0 | 6.43 | 0.57 | 0.75 | 2.16 |
|4|Total reseau | 18,500 | 6.7 | 5.28 | 0.88 | 1.32 | 5.5 |
|5|Northern reseau | | | | | | |
| | to Rue de Belle-| | | | | | |
| | ville. | 1,530 | 6.0 | 5.0 | 1.0 | 0.6 | 2.3 |
|6|To the Rue des | | | | | | |
| | Pyrenees. | 600 | 6.1 | 3.7 | 2.4 | 0.56 | 2.2 |
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These trials refer to the mains running from the St. Fargeau station
to the Place de la Concorde, a length of 9.142 kilometers; to the
whole system of mains, 16.5 kilometers; to the northern mains running
from St. Fargeau to the Rue de Belleville, 1.4 kilometers; and from
St. Fargeau to the Rue des Pyrenees, 6.5 kilometers. It will be seen
from the figures given in the table that the actual loss is small, and
it is stated that this is due chiefly to the elastic joint employed
throughout the system, excepting in the Rue de Belleville, where rigid
couplings are used, and continual trouble is experienced from loss by
leakage. In all cases the losses given are the maximum, which only
occur under the most unfavorable conditions.

It was found, during the first, second, and fourth tests, that
considerable leakage occurred between the St. Fargeau central station
and the Rue de Belleville. During the trials two and four, an
uncertain amount of loss occurred from the consumption of air required
to work the pneumatic clocks, and also motors in the circuit, that