No. 1,076.--" On some of the Internal Disturbing Forces of Locomotive Engines."l By ALEXANDER WOODLANDS MARINSON, LW. Inst. C.E. GREAT and successful efforts have been made of late years to improve the permanent way of railwkys. In any case of accident arising from an engine leaving the rails, the state of the permanent way first engages attention ; and the occurrence of numerous accidents of this nature, and the consequent public inquiry and criticism, have stimulated engineers to effect great

more »

... improvements in the permanent way. Notwithstanding, however, the high state of erfection to which it has been brought, engineers of eminence fave denounced high speed on railwa S as dangerous, to the extent even of justifying, or demanding, 6 overnment interference for its prohibition. The Author ventures to hope, that he may further the progress of engineering practice, by an attempt, not to divert the attention of engineers from the efficient maintenance of the permanent way, but to direct it more to the construction of the locomotives using that way. In the great problem then, of the safe transit of passengers at the high speeds called for on trunk lines, have the locomotive engineers done their part, by putting on the permanent way, engines without any internal disturhing forces tending t.0 make them leave the rails? May not a modern locomotive engine be accurately described, as an engine intended to move only in a forward an abstract of the whole is given consecutively. 1 The discussion upon this Paper extended over portions of two evenings, but [1862-63. N.S.] F Downloaded by [ UNIVERSITY OF EXETER] on [25/09/16].