FIG. 8.-Vertical Sections of the Coal-Measures of the Wyoming or Northern Coal-field, in Luzerne and Lackawanna counties, Pa. [published by permission of the Second Geological Survey of Pennsylvania, Charles A. Ashburner, asst. in charge of the anthracite coal-fields]. FIG. 9.-Philadelphia and Reading Coal and Iron Company's Average yearly capacity of production, tons...... Red-ash coal, 8 ft. Lykens Valley, upper. 3 ft. Lykens Valley, lower. Total coal, 107 ft., Total, in 9 beds. 273? 132,453 Ratio of value of product to capital, per cent... Ratio of actual output to capacity, per cent..... Tons raised yearly per man............... 26.86 67.28 405-7 89,721 Tons raised daily per man.......... 1.90 Per cent. of maximum capacity attained...... Average capital leased, employed, and invested Average number of hands employed....... 67-28 $550,041 Maximum yearly capacity of all collieries reported, tons..... 36,403,571 Average amount of wages paid yearly. Average value of materials used yearly..... FIG. 11.-Rate of Increase of the Demand for Anthracite Coal in the United States. The following summary, from the report of 1881 of the Pennsylvania State Bureau of Internal Affairs, is useful for comparison with the census figures, and is believed to be more nearly correct: Total number of collieries......... Weight and Volume.-Analyses of various anthracite coals show the following results as regard weight and volume: Name of Coal. 319 Cubic feet to 2000 lbs. Cubic feet to 2240 lbs. Total number of employés.......... Average number of days worked during year. 275'01 Honey Brook. 34.5 38.6 75,169 Hazleton........................... Total amount paid in wages during the year...$29,454,781.36 Sugar Loaf... Total production of anthracite coal for the Old Company's........ year ended Dec. 31, 1881, tons.... 27,929,129 Spring Mountain.... Average amount per ton paid in wages......... Average amount of coal produced to each employé, tons.... Mr. Joseph S. Harris in the above diagram (Fig. 11) shows the rate of increase in demand since 1830, and the probable rate until 1930. Table II. shows the present number of collieries in the anthracite region. Buck Mountain.... Lorberry. $1.06 374 Council Ridge..... |