53© 



THE INDEX 



Gearing: cams, 473; cog, 471 f.; 

 circular and reciprocating mo- 

 tion, 472; friction, 472; pitman 

 rod, 472 f . ; quadrant, or tri- 

 angle, 472; ratchet drive, 473 



Gears: bevel, 471; spiral and 

 worm, 471 f.; spur, 471 



Glass: plate, 161; special, 161; 

 window, 161 



Glycerin and alcohol solution, 

 freezing points of, 520 



Governors for gas engines, 516 

 f.; hit-or-miss, 517; throttling, 



517 



Gram, 18, 19 



Granaries, 324, 349; plan for 

 combined corn crib and gran- 

 ary (ill.), 350 



Gravel: bank run, 129, 135 f.; 

 for road building, 205 f. 



Gravity tank, 367 fL 



Ground for lath and plaster, 316 



Guard stake, 288 f. 



Gum tree, 106, 124, 126 



Guncotton, 174 



Gunpowder, 174 f., 178 



Guys, 457 



Half hitch, 48 



Hallways, 333 



Hardpan, use of dynamite for 

 breaking, 191 f. 



Heartwood, 107 



Heating, 401-423 {see also Fuels; 

 Heating apparatus); fuels for, 

 4171!.; historical development 

 of, 401 f. ; principles of, 402 fL; 

 types of apparatus for, 406 fL 



Heating apparatus : automatic 

 controls for, 417; fireplace, 406; 

 hot-air furnace, 408 fL ; hot- 

 water system, 410 fL; steam 

 systems, 416; stoves, 407 f.; 

 vapor or vacuum system, 416; 

 ventilation for, 416 f. 



Hemlock, 106, 123, 126 



Hemp: breaking strength of rope 

 made from, 32, 33; common, 30; 

 cotton, 30; safe load for, 32, 

 33; sisal, 30 



Henry, Alfred J., 440 



Hickory, 106, 124 



Hitches: half, 48; halter- tie, 49; 

 timber, 48 ; well-pipe, 48 f . 



Hog house, 324, 339 fL; con- 

 struction of, 339 f . ; cot or 

 colony house as substitute for, 

 341; feeding alley in, 340; 

 pens for, 340, 341 ; plan of 

 twelve-pen house, 341 



Homestead rights, 102 



Horse: balancing team power, 

 479 fL ; evener construction 

 when two or more horses are 

 used, 481; position of devise 

 holes for teams, 481 L; pulling 

 power of, 478 L 



Horse power, 431, 462 



Hose, 259, 260 



Hot-water back, 380 



Hot-water system of heating, 

 410 fL, 423; boilers for, 420; 

 pipes for, 412, 414; radiators 

 for, 414 L; size of heater for, 



415 f- 



House, 324, 326 fL; basement, 



305, 327, 334; bedrooms, 331 L; 

 dining room, 330; exterior, 

 326 fL; first-floor plan, 329; 

 hallways and stairs, 333; 

 kitchen, 329 f . ; living room, 

 330 f . ; sanitary system, 332 f . ; 

 second-floor plan, 331 



House heating. See Heating 



Hub stake, 288 



Hydraulic ram, 371 f. 



Hydrometers, 504 



Hydropneumatic system of pump- 

 ing water, 369 f . 



Ice house, 356 f.; plan for ice 

 house and dairy combined, 357 



Idler, 467 



Ignition, 498 fL ; jump-spark sys- 

 tem of, 508; make-and-break 

 system of, 507 f . ; rapidity of 

 burning, 498, 500; source of 

 current for, 501 fL; standard 

 voltage for, 502 ; types of, 500 f . 



Illinois: distribution of rainfall 

 in, 81; road traffic in, 196 f. 



Incandescent lamps, 434 



Incenter, 514 



Inch, 7; miners', 21 



Incinerators, 385 fL 



Initial point, 88 



Insulating materials: cork, 160; 

 felt, 160; paper, 161 



