COSTS AND STATISTICS. 



559 



The total labor costs given in the footing of the above table may 

 profitably be compared with those of two large and admirably managed 

 plants elsewhere. This is done in the following summary: 



TABLE 211. 

 LABOR AND OUTPUT IN TYPICAL PLANTS. 



It is to be noted that the second of these plants uses three shifts per 

 day, but its mechanical equipment is so perfect that this dqes not show 

 in the labor costs. 



Estimates of Total Cost per Barrel. 



Disregarding the remarkably low estimates of cost to be found in 

 prospectuses, several estimates of better quality have been published 

 within the past few years. These relate to manufacture carried on 

 under very different conditions, two applying to the Lehigh district, 

 with cheap labor and fairly cheap fuel, while a third estimate is for a 

 plant located in perhaps the worst possible spot in the country for fuel, 

 labor, and freight. To these published estimates has been added a 

 table prepared by the present writer. 



A partial account * of costs at the Atlas plant was given by Messrs. 

 Stanger and Blount a few years ago. This is as follows : 



TABLE 212. 

 COSTS OF CEMENT MANUFACTURE AT ATLAS PLANT. 



The following estimate, f recently published by Boilleau and Lyon, 

 is on the basis of a 2000-barrel plant (ten 60-foot kilns) located in the 

 Lehigh district. 



* Proc. Institution Civil Engineers, vol. 145, pp. 65-66. 

 f Municipal Engineering, vol. 26, p. 394. June, 1904. 



1901. 



