Stresses in rail ends. (Comparative measurements of dynamic stresses in 109 lb./yd. F.B. and 95 lb./yd. B.H. rail joints under various conditions of maintenance) (E-139)

Subsequent to the [text omitted as illegible] of the up 'Royal Scot' at Watford Tunnel on the 3rd February, 1954, due to the fracture of a 109 lb./yd. F.B. rail at the running-on end, and in view of the fact that calculation shows that the thinner web of the F.B.