Efficiency chart indicating cost of channeling rock, [285]
Efficiency chart showing costs in connection with steam-shovel work, etc., [286]
Emerson efficiency system of wage, [71]
Employe card showing complete record of, [108]
Employes
paying, [103]
records of, [106]
Employment card, [222]
Engineering, cost-analysis, [251-318]
Expense distribution, [127]