[Sidenote: _Compressed
Air_]

The power house will be provided with a system for supplying
compressed air to various points about the structure for cleaning
electrical machinery and for such other purposes as may arise. It will
also be used for operating whistles employed for signaling. The air is
supplied to reservoir tanks by two vertical, two-stage,
electric-driven air compressors.

[Sidenote: _Oil System_]

For the lubrication of the engines an extensive oil distributing and
filtering system is provided. Filtered oil will be supplied under
pressure from elevated storage tanks, with a piping system leading to
all the various journals. The piping to the engines is constructed on
a duplicate, or crib, system, by which the supply of oil cannot be
interrupted by a break in any one pipe. The oil on leaving the engines
is conducted to the filtering tanks. A pumping equipment then
redelivers the oil to the elevated storage tanks.

All piping carrying filtered oil is of brass and fittings are inserted
at proper pipes to facilitate cleaning. The immediate installation
includes two oil filtering tanks at the easterly end of the power
house, but the completed plant contemplates the addition of two extra
filtering tanks at the westerly end of the structure.

[Sidenote: _Cranes, Shops,
Etc._]