196 | 41.76 | 39.37 | 48.09 | 12.54 | 10121 | B. & W. Co. | 197 | 42.74 | 40.83 | 47.79 | 11.38 | 10271 | B. & W. Co. | 198 | 32.77 | 42.76 | 36.88 | 20.36 | 8958 | B. & W. Co. | 199 | 23.27 | 40.95 | 38.37 | 20.68 | 10886 | U. S. Geo. S.| 200 | 31.48 | 46.93 | 34.40 | 18.87 | 10176 | B. & W. Co. | | | | | | | | 201 | 32.48 | 43.04 | 41.14 | 15.82 | 10021 | B. & W. Co. | 202 | 32.01 | 43.70 | 43.08 | 13.22 | 10753 | B. & W. Co. | 203 | 33.98 | 46.97 | 41.40 | 11.63 | 10600 | U. S. Geo. S.| | | | | | | | 204 | 30.25 | 43.27 | 41.46 | 15.27 | 10597 | | 205 | 3.71 | 48.72 | 46.56 | 4.72 | | Gale | 206 | 6.44 | 51.32 | 43.00 | 5.68 | 11607 | B. & W. Co. | 207 | 19.08 | 45.21 | 46.42 | 8.37 | 12641 | U. S. Geo. S.| | | | | | | | 208 | 21.18 | 51.87 | 40.43 | 7.70 | 12316 | U. S. Geo. S.| 209 | 7.70 | 38.57 | 56.99 | 4.44 | 12534 | B. & W. Co. | 210 | 19.15 | 45.50 | 48.11 | 6.39 | 9868 | U. S. Geo. S.| ____|__________|__________|________|_________|________|______________| [Illustration: Portion of 12,080 Horse-power Installation of Babcock & Wilcox Boilers and Superheaters at the Potomac Electric Co., Washington, D. C.] TABLE 39 SHOWING RELATION BETWEEN PROXIMATE AND ULTIMATE ANALYSES OF COAL