154 CULTURE OF THE SUGAR BEET. 



BONE CHARCOAL. 



1 bone-black washer, with screw 13 feet long $200 



1 metallic portion of revivifying furnace, with 20 rectangular tubes 946 



1 cylinder for washing bone-black with steam 210 



Transmission of power in hone-black department, complete, about 252 



WATER AND STEAM. 



1 mechanical system for pumps, variable; 2 semi-tubular boilers, with 1,498 

 square feet of heating surface, for setting in brick, with safety-valves, steam 



and pressure gauges, eacb $3, 160 6, 320 



1 feed apparatus, with mechanically closed valves 580 



1 direct steam conduit, placed above the boilers, about 420 



1 return-water receiver 210 



CRYSTALLIZATION . 



2 vats for first crystallization ; 55,000 gallons of vats for the second and third 

 crystallization, in rectangular vats of 6,600 gallons each, about 3,360 



INCIDENTALS. 



Vats for sirups and lime, straight copper tubing, prepared copper tubing, cast- 

 iron tubing, wrought-iron tubing, bronze stopcocks, iron stopcocks, snndries 

 for construction, iron chimney for boilers, iron flanges and bolts ; total about 7, 300 



Total approximate cost of apparatus, machinery, and accessories for 

 extracting sugar from the juice 45, 282 



To these figures we may add about $25,000 for cost of packing and 

 transportation of machinery, apparatus, and accessories, and erection of 

 the buildings, &c. 



The cost of extracting the sugar from beets will of course vary ac- 

 cording to the facilities with which the works are provided. A writer 

 in a late number of the Journal des Fabricants de Sucre gives the follow- 

 ing estimate of cost of working in France. He remarks that it depends, 

 1st, upon the method of supplying the works, distance from supplies of 

 coal, limestone, &c. ; 2d, upon the relation existing between the capital 

 employed in the work and the number of tons worked ; 3d, upon the 

 more or less improved machinery, apparatus, &c. 



The estimate he makes is for a factory working by the diffusion pro- 

 cess, or continuous presses for extracting the juice, having a capacity 

 for 20,000 tons per annum, and representing a capital of $100,000. He 

 then fixes the cost of manufacture per ton of roots as follows : 



Beets $4 00 



Labor 80 



Coal and coke 80 



Incidentals 70 



Repairs, &c 48 



General expenses 50 



Interest and redemption of capital 40 



7 60 



He admits as the product : 



Sugar, 121 pounds, at $5.454 $6 60 



Molasses, 66 pounds, at $0.91 60 



Pulp 50 



Scums from defecation 05 



7 75 



Profit per ton of roots worked 15 



