LINGO LIBRARY · 18747Transactions of the American Society of Civil Engineers, Vol. LXX, Dec. 1910 Locomotive Performance On Grades Of Various Lengths, Paper No. 1172✳Randolph, B. S. (Beverly S.)ENB1 · EstimatedTransactions of the American Society of Civil Engineers, Vol. LXX, Dec. 1910 Locomotive Performance On Grades Of Various Lengths, Paper No. 1172Randolph, B. S. (Beverly S.)