| | | | | | | | | | | | | | ____|__________|__________|________|_________|________|______________| | | | | | | | 18 | 3.50 | 21.33 | 72.47 | 6.20 | 14682 | B. & W. Co. | | | | | | | | 19 | 3.63 | 16.27 | 76.93 | 6.80 | 14695 | B. & W. Co. | 20 | 2.28 | 19.43 | 77.44 | 6.13 | 14793 | B. & W. Co. | 21 | 1.13 | | | | 14451 | B. & W. Co. | 22 | 1.50 | 17.26 | 76.65 | 6.09 | 14700 | | 23 | 2.33 | 14.38 | 74.93 | 10.49 | 14033 | U. S. Geo. S.| | | | | | | [37] | 24 | 1.55 | 20.33 | 68.38 | 11.29 | 12965 | | 25 | 2.19 | 18.43 | 71.87 | 9.70 | 13500 | | 26 | 3.40 | 20.70 | 71.84 | 7.46 | 14484 | N. Y. Ed. Co.| | | | | | | | 27 | 1.23 | 18.37 | 75.28 | 6.45 | 14770 | So. Eng. Co. | 28 | 3.64 | 21.34 | 70.48 | 8.18 | 14401 | B. & W. Co. | 29 | 4.38 | 21.20 | 70.27 | 8.53 | 14453 | B. & W. Co. | 30 | 3.51 | 17.43 | 75.69 | 6.88 | 14279 | U. S. Geo. S.| | | | | | | | 31 | 3.40 | 14.89 | 75.03 | 10.08 | 14152 | B. & W. Co. | | | | | | | | 32 | 5.90 | 16.71 | 77.22 | 6.07 | 14843 | U. S. Geo. S.| | | | | | | | 33 | 3.43 | 17.53 | 69.67 | 12.80 | 13744 | B. & W. Co. | 34 | 1.24 | 25.43 | 68.56 | 6.01 | 13589 | B. & W. Co. | 35 | 2.91 | 21.55 | 69.03 | 9.42 | 14685 | B. & W. Co. | 36 | 1.55 | 23.36 | 71.15 | 5.94 | 13963 | Whitham | | | | | | | | 37 | 4.50 | 18.34 | 73.06 | 8.60 | 13770 | B. & W. Co. | 38 | 5.91 | 17.58 | 73.44 | 8.99 | 14105 | B. & W. Co. | 39 | 3.09 | 17.84 | 70.47 | 11.69 | 13424 | U. S. Geo. S.| | | | | | | | 40 | 9.37 | 16.47 | 75.76 | 7.77 | 14507 | P. R. R. | ____|__________|__________|________|_________|________|______________| APPROXIMATE COMPOSITION AND CALORIFIC VALUE OF CERTAIN TYPICAL AMERICAN COALS--Continued