INDEX 



Acceleration, gravity, 56 

 Acids, 135 



importance of, 136 



mineral, 137 



nature of, 136 



nomenclature, 140 



organic, 137 

 Action, chemical, 131 

 Adhesion, 3 

 Air, 



dry, absorbs moisture, 110 



moisture contained by, 91 



pneumatic tools, 94 



properties of, 90 



pumps, 93 



use in sand blast, 96 

 Alkalies, 135, 136 



formation of, 139 



nomenclature, 140 

 Aluminum, 444 



alloys, 445 

 Ammeter, 179 

 Ampere, 172 

 Analysis, chemical, 129 

 Aneroid barometer, 90 

 Annealing, 410 

 Antimony, 451 

 Arc lamp, 117 

 Area, rules for finding, 18 

 Armature, 193 



brushes, 192 

 Arsenic, 455 

 Atomic weight, 128 



B 



Bacteria, chemical, 149 

 Bacteriology, 1,2 

 Ball bearings, 50 

 Barometer, 88-90 



aneroid, 90 



history of, 89 



kinds of, 89 



principle of, 88 



Bases, 135 (See also "Alkalies") 

 Beaume hydrometer, 83 

 Bell-metal, 455 

 Belting, 



canvas, 285 



fastening, 286 



leather, 285 



measure of coiled, 287 



sag of, 286 

 Bessemer process, 402 



basic, 403 



Bichromate cell, 175 

 Bismuth, 451 

 Blacksmith, 392-395 



fire, 394 



scarfing, 394 



tools, 393 



welding, 394 

 Blast furnace, 371 



chemistry of, 372 

 Bleaching, 161 

 Block and tackle, 35 

 Bloom, 390 

 Blue-print, 231 

 Boilers, 302-327 



care of, 320 



chimneys, 322 



clearing, 319 



construction of, 305 



fire-tube, 303 



firing, 321 



joints, 306 



of steam engines, 302 



principal parts of, 310 



pumps, 314-316 



repairing, 310 



return tubular, 303 



safety valves, 311 



terms used in calculations, 325 



testing for defects, 309 



thickness of plate, 307 



water gauge, 313 



water-heater, 318 , 



water-tube, 304 ...'..' 



469 



