XIV INDEX Oil — (Continued) feed, Stoppage ef, §16, p50. gas, §10. p39. grooves in bearings, §16, p34. Insufficient quantity of, §16, p51. required for water gas. Coal and, §10, p38. Oiler, Precision, §16, pl4. Oils, Analyses of Texas and California, §10, p29. Analysis of Pennsylvania, §10, p28. Crude, §10, p28. Dirty and gritty, §16, p51. Examination of, §10, p31. of poor quality, §16, p51. Open crank-case type of marine engines, §12, p54. Operation of four-cycle gas engine, Principles of, §11, pl2. of gas engine, Theory of. §11, pi. of two-cycle engine, §11, p32. Operations of two-stroke cycle. §11, p38. Opposed automobile engines, Double-cylinder horizontal, §12. pl3. Origin of petroleum, Occurrence and, §10, pl8. Outboard bearing, Springing or shifting of, §16, p56. Pressure — (Continued) of gaseous mixtures, §9, p22. -volume diagram, §11, plO. Pressures, Mixtures of equal volumes of gases having unequal, §9, p23. Mixture of two unequal volumes of gas having unequal, §9, p24. volumes, and temperatures, Mixture of two quantities of air having unequal, §9, p25. Priming and relief cocks, Combined, §15, p33. Producer, Construction of gas, §10, p40. gas, Analysis of, §10, p44. gas, Calorific value of, §10, p45. gas, Composition of, §10, p45. gas, Manufacture of, §10, p39. Products manufactured from petroleum, §10, p30. obtained from petroleum, §10, p23. Properties of heat, §9, p2. Pump lubricator, Independent, §16, plO. Purpose of lubrication, §16, pi. Pyrometers, §9, p8. Quantity of heat, §9, p3. Parts of gas engines, Essential, §13, pi. Pendulum or inertia governor, Gas engine with, §13, p24. Pennsylvania oils, Analysis of, §10, p28. Petroleum, Chemical constituents of, §10, p26. A Distillation of, §10, p22. Extraction of, §10, p21. Occurrence and origin of, §10, pl8. Products manufactured from, §10, p30. Products obtained from, §10, p23. Refining, §10, p25. Transportation of, §10, p22. Pins, Split, §15, p39. Piston rings, §15, pi 7. -speed limits, Speed flexibility and, §12, p57. Pistons, §15, pi 5. Construction of, §15, pl5. Plain bearing, §16, p25. -roller automobile bearings, §16, p29. -roller bearing, §16, p28. Poppet valves, §15, p23. Ports in two-cycle engine cylinder, §15, p6. Positive work, §11, pll. Power gases, Characteristics of, §10, p47. Precision oiler, §16, pl4. Pressure lubricator, Exhaust, §16, p8. Mean effective, §11, pll. Radiant heat, §9, p9. Radiation, Intensity of heat, §9, plO. of heat, §9, p9. Ratchet eccentric, §15, p31. Rating oil and gasoline, §10, p25. Readings, Thermometer, §9, p5. Refining petroleum, §10, p25. the distillates, §10, p25. Refitting a cut bearing, §16, p45. Reflection and absorption of heat, §9, pll. Relief cocks, Combined priming and, §15, p33 Ring-oiled bearings, §16, p27. Rings, Piston, §15, pl7. Roller and ball thrust bearings, §16, p40. automobile bearings Conical, §16, p33. automobile bearings, Spiral, §16, p31. bearing, Plain, §16, p28. bearings, Conical, §16, p31. bearings, Spiral, §16, p29. S Saturated steam, Total heat of, §9, p32. Saturation point, §9, p27. Scale, Centigrade thermometer, §9, p5. Fahrenheit thermometer, §9, p5. Scavenging, §11, p42. Scrapers, Bearing, §16, p36. Sensible heat, §9, p3. Setscrews, §15, p38.