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 exception of the branch of the E.I. Railway mentioned above are worked by the staff of the N W. State Railway, whose manager controls inside and outside the Panjáb some 5000 miles of open line. The interest earned in 1912 was 4½ p.c, a good return when it is considered that the parts of the system to the north of the Salt Range and the Sind Ságar railway were built primarily for strategic reasons.