The analysis of fuel, gas, water, and lubricants . ^, and the necessity ofdeveloping the highest possible efficiencies in its use. Inci- 70(3 ?)^600 I^.. I ^400to /^ ^ Ch t Xi - Al it ^L. (1J_LLI Mill ^- : 2 ^^ -J- 2 ^t - y I /_ J _/ _^^ ^^ ^ 1680 1865 1830 /89S 1900 1905 I9/0 /9/S 1920 ;Fig. 2.—Annual output of coal in the United States, 1880 to FiQ. 3.—Coal reserves, showing tlic relative availal)le ooal resources of the United States. dentally, it may be noted that the world output of coal for 1920was estimated at 1,430,000,000 short tons, from which it will be> 111. State
The analysis of fuel, gas, water, and lubricants . ^, and the necessity ofdeveloping the highest possible efficiencies in its use. Inci- 70(3 ?)^600 I^.. I ^400to /^ ^ Ch t Xi - Al it ^L. (1J_LLI Mill ^- : 2 ^^ -J- 2 ^t - y I /_ J _/ _^^ ^^ ^ 1680 1865 1830 /89S 1900 1905 I9/0 /9/S 1920 ;Fig. 2.—Annual output of coal in the United States, 1880 to FiQ. 3.—Coal reserves, showing tlic relative availal)le ooal resources of the United States. dentally, it may be noted that the world output of coal for 1920was estimated at 1,430,000,000 short tons, from which it will be> 111. State Geol. Surv. Yearhook for 1916, p. 26. COAL 7 seen that the yield for the United States was 45 per cent of thetotal. Distribution of Reserve Supplies.—A chart of the coal resourcesby states is shown in Fig. 3. The estimated tonnage inreserve for the five states having the most extensive coal deposits COLO. ILL. PENN. OHIO.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectchemist, bookyear1922
