602 



INDEX 



Fireless cooker, 153. 



Fireplace, 112, 72; old fashioned, 

 72; 18th Century, 112; low 

 efficiency of, 142; modern venti- 

 lating, 143; cooking by, 145. 



Flame, 91; blowing out of, 91; 

 luminous and non-luminous, 92; 

 conditions for, 92. 



Flashing point, 4, 29. 



Floating bodies and buoyancy, 115. 



Flour, 369; baker's, 369; graham, 

 369; patent, 369; whole wheat, 

 370. 



Flushing tank, siphon, 507. 



Flywheel, purpose of, 580. 



Food, 347; classes of, 348; compo- 

 sition of, Table, 353; cost of, 378; 

 elements, 345; how much? 352, 

 355; manufacture of, 358-378; 

 principles, 348; heat value of, 

 355. 



Foods, contest for by microorgan- 

 isms, 380; energy of, 380; origin 

 of, 380; cereal, 369; dairy, 359; 

 meat, 366. 



Foot-pound, 640; equivalent in 

 calories, 551. 



Force, 639 ; units of, 539; compared 

 with weight, 539; centrifugal, 

 484, 530. 



Force pump, 477. 



Fortin's barometer, 186. 



Freezing, of ice cream, 169; mix- 

 tures, 171. 



Freezing point, 15; of water, 166. 



Friction, 545 ; effect on water pres- 

 sure, 492; sometimes helpful, 546; 

 produces heat, 549. 



Frost, definition, 224; and radia- 

 tion, 207; fighting of, 208; and 

 air drainage, 210; and wind, 212; 

 and dew, 224. 



Fuel, 76; elements, 76; composi- 

 tion of solid, Table, 94; liquid, 

 100; gaseous, 101 ; composition of 

 gaseous, Table, 105; heat value 

 of, Table, 109. 



Fulcrum, 537. 



Furnace, 123; air blast of, 97; side 

 feed, 98; setting of, 123; air 

 supply for, 123; a successful, 126. 



Gas, natural, 23; coal, 101; water, 

 102; gasoline, 37, 103; acetylene, 



103; producer, 104; engine, 574; 

 pressure on illuminating, 45; 

 meter, 44; cost of illuminating, 

 68; compression of, 580. 



Gas meter, 43; construction and 

 operation, 44; reading of, 45. 



Gasoline, 25; grades of, 26; prop- 

 erties of, 26; danger from, 31; 

 lamps, 34; gas machines, 37; 

 importance of, 39; manufacture 

 from natural gas, 40; gas, 37, 

 103; stove, 149; motor, 550; 

 engine, 575. 



Gasoline engine, in automobiles, 

 575; in aeroplanes, 575; in farm 

 power house, 520, 534. 



Gauge, pressure, 136; vacuum, 

 136; water, 138, 574; water 

 pressure, 495. 



Glacial drift, 456. 



Glucose, 373. 



Gluten, 370. 



Grape sugar, 373, 391. 



Grate, modern ventilating, 143; 

 cooking before, 145. 



Gravitation, 536. 



Gravity, 536; system of ventila- 

 tion, 329-333; separation of 

 cream, 529; effect on ground 

 water, 453-460. 



Ground air, 460-465; and ground 

 moisture, 465. 



Ground water, 450; relation to 

 river water, 459; relation to 

 wells, 469; movement through 

 the soil, 458; relation to plant 

 life, 466. 



Hair hygrometer, 219; use in 

 schoolroom, 325. 



Hay culture, 398. 



Health, and climate, 288; and sun- 

 shine, 300; seeking in change of 

 climate, 302; effect of indoor 

 climate upon, 307; change of 

 climate beneficial, 307; and 

 living in the open air, 308 ; effect 

 of pure air upon, 312; effect of 

 humidity upon, 322; effect of 

 dust upon, 337; duty regarding 

 public, 448. 



Heat, quantity, defined, 106 ; units 

 of, 107; how measured, 107; ef- 

 fect upon volume of air, 114; 



