136 CULTURE OF THE SUGAR BEET. 



The net cost of extraction of the juice is evidently variable with the processes of 

 extraction, and it is the same for rasping-works as for ordinary works. 



The advantage of central factories consists in the reduction of costs of every descrip- 

 tion at the central works and in the reduction of the general costs by half the weight 

 of the beets. Thus at Cambrai we have expended this year 30.80 francs ($8.16) per 

 long ton of beets, including cost of beets, paid for at the rate of 21 francs ($4.20) to 

 the grower. In the next campaign, if we work 200,000 tons instead of 165,000 tons, 

 the quantity worked in the last campaign, the cost per ton will be reduced to 30 francs 

 ($6). I think that an ordinary factory working annually 15,000 tons of beets will 

 expend 34 to 35 francs with our price of beets. With the continuous presses we are 

 trying we shall fall to 28 francs ($5.60). 



It follows that central factories less important than that at Cambrai will expend 

 more. That at Origny, which consumes 120,000 tons, has expended 1.50 francs more 

 per ton than ours. 



I hope, sir, that this information will be satisfactory. 

 Accept, etc., 



LINARD. 



Linard's figures for cost of constructing pipe lines may be translated 

 as follows : 



Pipe 100 millimeters (3.9 inches) diameter weighs 18.779 pounds per foot. 

 Pipe 100 millimeters (3.9 inches) diameter costs $0,273 per foot. 

 Laying same complete costs $0.0914 per foot. 



Estimates for similar costs in the United States are given as follows: 



For pipe : 

 4-inch diameter, weighing 18 pounds per foot, costs $0.23 per foot. 

 6-inch diameter, weighing 26 pounds per foot, costs $0.41 per foot. 



For laying, filling, calking, fitting, &c. : 

 4-inch pipe, $0.14 per foot. 

 6-inch pipe, $0.16 per foot. 



From these figures we may estimate the comparative cost per mile of 

 constructing pipe lines in France and the United States, using 4-inch 

 pipe : 



France. 



United 

 States.* 



Pipe 



Laying complete. 



Total 



$1, 441 44 



482 59 



$1, 214 40 

 739 20 



1, 924 03 



1, 953 60 



* Since this table was constructed in July, 1879, the price of pipe in the United States has advanced 

 (December 15, 1879) at least 75 per cent. 



As Linard says, the cost of establishing these hues will, of course, 

 vary with the size of the pipe used. For the United States, supposing 

 5,000 tons* to be handled at each rasping- works in a year, cost of estab- 

 lishing the pipe line at $2,000 per mile in round numbers, and interest, 

 &c, at 10 per cent, per annum, the cost of transporting the juice by 

 this system would be 4 cents per mile per ton of beets worked, and this 



* But for so small a quantity as 5,000 tons per annum a much smaller pipe, half the 

 diameter, could be used, and the cost of establishing the line would be reduced in con- 

 sequence by about 30 per cent. 



