CULTURE OF THE SUGAR BEET. 153 



(e.) Rotary diffusion battery, capacity 140 to 150 tons o£ roots in 24 hours: 



1 root-elevator, complete $440 



1 root-washer, complete 320 



1 Collas-stone separator 360 



1 root-cutter; 8 boxes of knives, with 16 boxes extra for exchange 1, 000 



1 complete system of rotative diffusion (patented in Prague), patent rights 



included. 9,000 



Transmission of power, complete, about 960 



Various vats for holding juice and milk of Me 225 



Total approximate cost of apparatus, machinery, and accessories for 



system of rotary diffusion 12, 305 



PRODUCTION OF GAS. 



1 metallic fixture for lime-kiln of 175 cubic feet capacity 680 



1 gas-washer No. 1 215 



1 blowing apparatus, with special motor, comprising 1 air-pump, 24^-inch cylin- 

 der and 16-inch stroke ; 1 horizontal engine, No. 4, with 9-inch cylinder 1, 796 



1 tubing, complete, for conveying gas from furnace to washer, the blowers 



and saturating-pans, about 520 



SATURATION. 



1 horizontal pump for juice, for forcing juice to the first saturating-pan ; 1 



pump for forcing juice to second saturating pan 546 



6 saturating-pans, complete, capacity 600 gallons each, about 2, 760 



6 floating regulators, No. 1, each §32 192 



6 decanting vats, complete, about 566 



SCUMS. 



2 monte-jus of 330 gallons capacity, complete, each §210 420 



2 Trincks filter-presses, each $336 672 



FILTRATION. 



4 bone-charcoal filters, 8 feet 3 inches high, 3 feet 11 inches diameter, each 



$188 - 752 



1 boiler for reheating sirups, complete 336 



EVAPORATION. 



1 apparatus for evaporation in vacuo at a low temperature and with triple 



effect, complete 6, 300 



1 injection-condenser, No. 2 105 



1 tubular reheater of about 390 square feet of heating-surface 568 



1 mechanical system for horizontal air-pump, comprising 1 non-condensing 



engine, 1 double-effect air-pump, 14-inch cylinder and 20-inch stroke 1,790 



1 system of pumps for juice and sirup for the service of the triple-effect pans. 546 

 1 receiver of exhaust steam, with safety-valve, forming escape valve, and 



pressure-gauge set at 4.4 pounds 250 



BOILING. 



1 boiler, complete 1,932 



1 injecting-condenser, No. 1 ; 1 safety vase, No. 1 273 



1 mechanical system for horizontal pump, No. 1, comprising 1 horizontal non- 

 condensing engine, 1 double-effect air-pump, 11^-inch cylinder, 15f-inch 

 Btroke 1,365 



PURGING AND CLARIFYING. 



1 machine for dividing the sugar 210 



3 centrifugal filters (improved), each $290 870 



1 non-condensing horizontal engine, 9-inch cylinder, 15f-inch stroke 880 



1 horizontal pump for molasses 290 



1 transmission of power from engine to apparatus, about 650 



