INDEX. 247 



Boilers, Vertical Tubular, 183 to 210. 



Boilers, Water Tube, 217 to 233. 



Boilers with miscellaneous details of construction, See Air, Alternate 



firing, Blower, Detached furnace, Double passage, Fire box, Flue 



heater, Superheating, Water leg. 

 Brick arch in furnace, Boiler with, 149. 

 Bridge wall, Effect of shape of, upon economy, 51. 

 Broken coal, Tests with Anthracite, 73, 78, 101, 107, 118, 121, 131, 148, 150, 



163, 1GG, 169, 183, 194, 197. 



Calorimeter, Barrel, 17. 



Calorimeter for determining heat of combustion of coal, Appendix. 



Calorimeter, Superheating, 18, 19. 



Calorimeter tests of the quality of steam, 62. 



Calorimeter, Universal steam, Appendix. 



Cast Iron Sectional Boilers, 211, 213, 215. 



Cast Iron Sectional Boilers, Comparative economy of, 40. 



Cast Iron Sectional Boilers with flue heater, 213. 



Chestnut coal, Tests with, 67, 102, 104, 107, 217. 



Chestnut No. 2 coal, Economy of, 49. 



Chestnut No. 2 coal, 115, 127, 174, 179, 199, 213. 



Coal, Cambria bituminous, 215, 230. 



Coal, Clearfleld bituminous, 203. 



Coal, Cumberland, 70, 79, 91, 101, 110, 121, 122, 136, 139,148, 150, 157, 159, 



163, 166, 168, 171, 179, 180, 194, 205, 208, 224. 

 Coal, Delaware and Lackawanna Broken, 169. 

 Coal, Franklin, 81. 

 Coal, Hazelton Chestnut, 67. 



Coal, Honeybrook Lehigh Chestnut, pea and broken, 107. 

 Coal, Kalmia, 81. 



Coal, Lackawanna Broken, 73, 79, 101, 163, 166, 183, 

 Coal, Lackawanna Chestnut No 2., 228. 

 Coal, Lehigh Broken, 101, 121, 194, 197, 221. 

 Coal, Lehigh Chestnut, 102, 104, 107, 217. 

 Coal, Lehigh Chestnut No. 2, 222. 

 Coal, Lehigh Egg, 91, 126, 187. 

 Coal, Mixture of Buckwheat and Clearfield, 142. 

 Coal, Mixture of Pea and Dust and Clearfleld, 115. 

 Coal, Mixture of Pea and Dust and Cumberland, 79, 86, 110, 123. 

 Coal, Mixture of Pea and Dust and Nova Scotia Culm, 79, 118, 166. 

 Coal, Mixture of Pea and Dust and Powelton, 227. 

 Coal, Mixture of Screenings and Cumberland, 91, 101, 150, 194, 197. 

 Coal, Mixture of Screenings and Nova Scotia Culm, 75, 81. 

 Coal, Nova Scotia Culm, 132, 134, 166. 

 Coal, Ohio Lump, 50, 152. 



Coal, Philadelphia and Reading Broken, 148, 150. 

 Coal, Schuylkill Broken, 191. 

 Coal screenings, 191. 



