INDEX. 



Air above fuel, Boilers which admit, 81, 89, 111, 123, 132, 157, 192, 217, 224. 



Air above fuel, Prevention of smoke by admitting, 54, 62, 113, 137. 



Air and steam through cast iron globes at bridge wall, Economy of admit- 

 ting, 89, 179. 



Air at bridge wall, Economy of admitting, 52, 111. 



Air leakage through unsound brick work, 201, 215, 232. 



Air over fuel, Economy of admitting, 52, 53, 54, 55, 56, 83, 91, 111, 125, 

 133, 195. 



Air space in grates, Tests with different proportions of, 60, 95. 



Air through bridge wall and through side walls of furnace, Economy of 

 admitting, .55, 83, 125, 133, 195. 



Air through bridge wall and through supplementary wall behind it, 

 Economy of admitting, 54, 158. 



Allowance for superheating, 22, 186. 



Alternate firing, Boiler with two furnaces for, 38, 121. 



Anthracite coal, Tests with, 67, 73, 78, 89, 92, 96, 98, 102, 104, 107, 113, 116, 

 119, 126, 127, 129, 131, 146, 149, 154, 162, 165, 169, 174, 177, 179, 183, 

 187, 190, 192, 196, 199, 201, 211, 213, 217, 219, 221, 222, 228. 



Artificial draught with blower, Economy of, 61, 87. 



Ash in different coals, Percentage of, 111, 164. 



Automatic vs. hand regulation of draught, 60, 94. 



Banking fires, Loss from, 62, 179. 



Barrel Calorimeter, 17. 



Bituminous coal, Tests with, 70, 78, 89, 101, 110, 121, 132, 134, 136, 139, 



140, 145, 148, 150, 152, 156, 157, 159, 163, 166, 168, 171, 179, 180, 194, 



203, 205, 208, 215, 224, 230, 231. 

 Blower draught, Boilers with, 70, 75, 86, 190. 

 Boiler setting, 51. 



Boilers, Cast iron Sectional, 211, 213, 215. 

 Boilers, Direct Tubular, 86, 105, 149. 

 Boilers, double-deck, 159 to 171. 

 Boilers, Galloway, 180. 



Boilers. Horizontal Return Tubular, 67 to 157. 

 Boilers, Plain Cylinder, 174 to 180. 

 Boilers, Plant of two or more, See Plant. 



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