OCR Text |
Show A Bcrlixgtox railroad man is authority for saying that the speed of railroad trains is restricted within three theoretical limits; first, a physical phys-ical limit of eighty miles an hour, beyond hith it is found Impossible for the train to keep (he track; to, ond an operating limit of sixty miles auhour, which practical experience has found that trains can be run without modi danger of life; third, a commercial limit of thirty miles an hour, at which rate, all things considered, it is found most economical to run a train. |