=Bibb-cock=, def., 18 =Blakeslee steam pump=, ills. and des., 299-301 =Bodies soluble in water=, how weighed, 94 =Boiler feed pump duplex power=, ills. and des., 230-231 pumps, ills. and des., 225-234 table of capacity of, 226 =Boiling point of water=, 76 =Bolt-extractor=, des. and ills., 164 =Bolts and stubs= to be used in the underwriter steam fire pump, 356 =Bonnets=, def., 18 ills., 223 =Boss=, def., 19 =Boulton, Matthew=, inventor of hydraulic ram note, 175 =Bourdon spring=, of metallic barometer des., 115-116 =Bounarbashi fountains of=, historical def., 50 =Braden pump valve=, ills. and des., 215-216 =Bramah=, time of his invention of the hydraulic press, 169 =Brass=, specific gravity of, 96 =Breast=, water wheel des. and ills., 122 =Brick=, specific gravity of, 96 =Bronze=, specific gravity of, 96 =Brotherhood three cylinder hydraulic engine=, 150-152 =Brushes=, dynamo, des. and ills., 251, 262 =Buckets, gaining and losing=, historical, des. and ills., 59, 60 part of water wheel, 130 =Buffalo single cylinder pump=, ills. and des., 319-321 =Burnham steam pump=, ills. and des., 324-326 =Bushing=, def., 19 =Caffee, Alberto H.=, dedication of work to, V =Calabash=, des., 38 =Cameron steam pump=, ills. and des., 295, 296 =Capacity of a pump=, depends upon speed, etc., 353-354 =Capacity plate= of the underwriter steam fire pump, 355 =Capillary attraction=, def., 103 facts and ills., 103, 104 note, containing examples of, 104 =Care and management of electric pumps=, 268 =Carlyle=, quotation, IV =Cases= for turbines, des. and ills., 136 =Castor oil=, specific gravity of, 96 =Cauldron=, ills., 35 =Centrifugal pump and electric motor=, ills. and des., 272 pumps, why so called, 188 =Chain of pots=, des. and ills., 63 pumps, why so called, 187 =Chambers=, air and vacuum for the underwriter pump, 381 =Charcoal=, specific gravity of, 96 =Check-nut=, def., 19 valve, def., 19 office of, 388 of the underwriter pump, method of use, 387, 388 wing pattern, ills. and des., 227 =Chemicals, pump for handling=, ills. and des., 233 =Chinese windlass=, des. and ills., 47, 62 =“Chutes” of water wheel=, ills., 139 =Circuit breakers=, 255 =Circulating pump=, def., 19 =Clack valve=, def., 19 =Classification of pumps=, 185 =Clay=, specific gravity of, 96 =Clearance=, def., 19 space of the underwriter steam fire pump, 356 =Clepsydra=, des. and ills., 39 =Coal=, specific gravity of, 96 =Cock=, def., 19 =Cocks, drain=, for the underwriter pump, 390 =Coefficient of friction=, def., 99 =Collecting-brushes=, part of dynamo, 248 =Column pipe=, def., 19 =Commutator=, ills. and des., 247, 262 bars, des. and ills., 251 =Compensator=, 256 =Compound duplex pumps=, with the Deane switch valves, 343 steam pumps, 65