52 



BULLETIN 1067, TJ. S. DEPARTMENT OF AGRICULTURE. 



The above wages are approximately 25 per cent greater than those 

 paid in 1917. In considering the above table, it must be remembered 

 that the plant operator is usually furnished a house and garden and is 

 able to engage in agriculture on a small scale. In some cases he is 

 able to do considerable repairing of farm machinery in addition to hi s 

 duties at the pumping plant. Wages therefore are considerably lower 

 than those paid in commercial plants, where full time is required. 



















































































































































i,i.i i 







30 

























- Plant per Acre /n 19/7 and /9/9 





















































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4 





















































































































































d/agram shomng f/xed charges 

 per Acre per Year for Dpa/nage 

 Pumping Plants /n Lou/s/ana, 





















































S^ 

















3 















s^ 



/y^ - 







Based on /9/9 Cost of Plant 

























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. 











i 































































I 2 3 4 5 6 7 



Thousands of Acres //v Project 



Fig. 8.— Cost of pumping plants and fixed charges per acre per year. 



The actual costs of some of the plants tested are shown in figure 8. 

 The costs for 1919 were obtained by increasing the 1917 price by 88 

 per cent, which is the average increase in the cost of material and 

 labor. The two lines for each year represent approximately the 

 upper and lower limits of cost, depending upon the type of plant 

 constructed. 



The upper limit of fixed charges per acre per year was obtained by 

 taking the interest on the upper limit of cost of pumping plant per 

 acre for 1919 computed at 6 per cent and adding an annuity on a basis 

 of 4 per cent that will replace the plant in 15 years ; the lower limit was 

 obtained by taking the interest on the lower limit of cost per acre for 



