ection 188
Furnace for oil fuel 221, 222
Oil burner 218
Peat 167
Perkins' boiler 24
Pfaundler's method of coal calorimeter radiation correction 187
Pipe coverings 315
Data 308
Expansion of 315
Pipe fittings 311
Flanges 309
Flow of steam through 317
Radiation from bare and covered 314
Sizes 312
Supports for 315
Piping, boiler room 308
Pitting 102
Plant records, coal 293
Draft 294
Temperature 294
Water 293
Plasticity of fire brick 302
Pressed fuels 171
Priming in boilers 102
Methods of treating for 107
Properties of water 96
Proximate analyses of coal 177
Proximate analysis 173
Method of making 176
Pulverized fuels 170
Pump, efficiency of feed 112
Pyrometers, expansion 89
Mercurial 89
Optical 91
Radiation 90
Thermo-electric 90
Quality of steam