250 INDEX. 



Horizontal return tubular boiler with double passage for products or com- 

 bustion, 38, 75, 98, 134. 



Horizontal return tubular boiler with superheater, 67, 154. 

 Horizontal return tubular boiler with water leg front, 89, 107. 



Influence of flue heater on the draught, 59. 

 Interests which led to tests, 9. 



Labor of firing with different fuels, Comparative, 80, 119, 196. 

 Leakage of air through unsound brick work, 26, 201, 215, 232. 

 Location of boilers tested, 10. 



'Loss by air leakage through unsound brick work, 26, 201, 215, 232. 

 Loss by banking flre, 62, 179. 

 Loss of heat in vertical boilers at chimney, 26. 



Meaning of lines given in tables, 19. 

 Method of computing results, 20. 

 Method of conducting ideal tests, 12. 

 Method of conducting tests given in Part II, 13. 

 Method of determining quality of steam, 17. 

 Method of taking temperature and draught suction, 16. 

 Method of weighing feed water, 15. 



Mixture of Anthracite and bituminous coal, Tests with, 75, 79, 81, 84, 91, 

 101, 109, 115, 118, 123, 142, 150, 166, 194, 197. 



Object of boiler tests In general, 11. 



Pea coal, Tests with Anthracite, 110, 118, 178, 219. 



Petroleum oil from Canada, Test with, 151. 



Petroleum, Tests with, 50, 97, 150. 



Pipes beneath boiler shell in furnace, Effect of, upon economy, 67, 142. 



Plain cylinder boilers, 39, 174, 177, 179. 



Plant of two cast-iron sectional boilers, 215. 



Plant of ten cast-iron sectional boilers with flue heater, 213. 



Plant of three 60-inch double-deck boilers, 162. 



Plant of four 54-inch double-deck boilers, 168. 



Plant of four 48-inch double-deck boilers with flue heater, 171. 



Plant of six Galloway boilers, 180. 



Plant of three 48-inch horizontal return tubular boilers, 116. 



Plant of six 48-inch horizontal return tubular boilers, 73. 



Plant of two 60-inch horizontal return tubular boilers, 126. 



Plant of three 60-inch horizontal return tubular boilers, 146. 



Plant of four 60-inch horizontal return tubular boilers, 122. 



Plant of six 60-inch horizontal return tubular boilers, 84. 



Plant of three 66-inch horizontal return tubular boilers, 138. 



Plant of two 72-inch horizontal return tubular boilers, 132. 



Plant of three 72-inch horizontal return tubular boilers, 127. 



Plant of two 48-inch horizontal return tubular boilers and one furnace, 70. 



