CONTENTS.
CHAPTER VIIIL
INTERURBAN AND CROSS COUNTRY WORK.
Conditions on interurban roads—Power required—Com-
putation of the feeding system—Fconomy of various
methods of distribution—Light electric roads for country
districts—Narrow gauge roads—cost of construction and op-
eration—Bicycle and saddle-back roads—cost of construction
and operation .
CHAPTER IX.
FAST AND HEAVY RAILWAY SERVICE.
Kinds of work for which electric power is best suited—
Suburban passenger traffic—Conditions of competition be-
tween steam and electricity—Power required for operating
electrically—Special trolley systems—Computation of the
feeders—Cost of overhead system—The third rail system—
The Nantasket road—Cost of electric power for suburban
work—Very high speeds—Air resistance—Other resistances
—Tractive power required—Track for extreme speeds—
Methods of operation—The braking problem—Computation
of the feeding system—Cost of power—Electric elevated
roads—The Metropolitan road of Chicago—The Lake Street
road of Chicago. Distribution of the power—Special heavy
service—The Baltimore & Ohio tunnel—Results already at-
tained—Electric passenger locomotive—Methods of power
distribution.. .
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