22 



BULLETIN 973, TJ. S. DEPAETMENT OF AGEICULTTJEE. 





























































































































































































































































































































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Fig. 16. — Comparative costs for labor and for interest and depreciation on equipment 

 in washing bottles by different methods at plants of various sizes, based on labor 

 costs at 91 plants and prices for 1914. The cost of both labor and machinery has 

 greatly increased since these figures were obtained; the figures are useful, however, 

 to show the comparative costs with the different methods used. 



