THE INDEX 



Absorption and disposal of rain- 

 fall, 76, 78 



Acetone, 426 



Acetylene system of lighting, 

 426 ff. ; diagrams of, 427, 429 



Acre, 16 



Acre-foot, 22 



Aggregate, 131 ff.; coarse, 132; 

 fine, 132 f. 



Agricultural production. See Crop 

 production 



Air, mobility of, 402 



Alcohol and glycerin solution, 

 freezing points of, 520 



Ames, Iowa, rainfall statistics for, 



251 



Ampere, 430 



Anti-freezing liquids, 520 

 Are, 18, 19 



Arrowrock Dam (ill.), 264 

 Ash, 106, 123 



Automobile, as affecting roads, 

 195, 204, 207, 208 



Bacon, Roger, 174 



Bank-run gravel, 129, 135 f. 



Barns, 324, 335 ff.; balloon-frame, 

 334 (ill.), 335; frame, 335; 

 King system of ventilating, 

 337, 338 (ill-); Rutherford 

 system of ventilating, 337; use 

 to which devoted, 335 f.; vend- 

 ition of, 336 ff. 



Barrel, 17 



Base line, 88 



Basements, 305, 334 



Basswood, 122, 229 



Batch, 129 



Bath tub, 376 



Bathroom, 332 



Baume scale, 494 



Bearing: magnetic, 27; true, 27 



Bearings, 465, 474; ball, 464 (ill.), 

 465; box, 474; for gas engines, 

 518; lubricating devices for, 

 474; roller, 464 (ill.), 465; 

 types of, 474 



Becket, 57 



Bedrooms, 331 f. 



Beech, 106, 124, 126 



Bell, Alexander Graham, 442 



Bells, for telephones, 445, 451 ff. 



Belting, 467 ff . ; canvas, 468 ; 

 chain-and-sprocket, or link, 469; 

 leather, 467; methods of lacing 

 canvas (ill.), 470; rope, 471; 

 rubber, 468 



Beveled siding, 159 



Bight, (ill.) 36 



Birch, 122, 124, 126, 164, 229 



Bird's-eye, or curly, defect in 

 lumber, 112 



Blasting. See Dynamite; Explo- 

 sives 



Blasting powder, 175 



Blau-gas, 425 f. 



Blazes, 95, 195 



Blinding, 294 



Block, 57. See also Blocks 



Blockholing, 189, 191 



Blocks: lifting force of,59ff; 

 moving heavy objects with, 61; 

 reeving, 58 f. 



Board foot, 127 



Bond, 129 



Boom, 108, 109 (ill.) 



Boundaries: as determined by 

 resurveys, 97!*.; county, 100; 

 fence lines as determining, 97, 

 105; national, 100; of govern- 

 ment reservations, 100; state, 

 100 



Bowlders, use of dynamite for 

 breaking, 189 ff. 



Bowline, 43 f . 



Brick, 158?.; for pavements, 208; 

 for walls, 308 f . ; laying of, 308 ; 

 weight of, 309 



Briquets, 419 



Broad-leaved trees, 106, 124 ff. 



Buckle, definition, 70 



Building construction^ 302-322; 

 base, 304 f . ; preparation of site, 

 302 ff. ; superstructure, 305 ff. 



525 



