. The railroad engineer's practice . R= *^ {F—a) 2 ^b Radius of turnout = 114. ix \oc. « » sin. i{F ± a) t) 9^ S upper signs for inside. 2 (lower signs for outside. To find the distance from the point of switch to point of frog on a tangent

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Keywords: ., bo, bookcentury1800, bookdecade1880, bookidrailroadengineer00clee