Chicago : Engineering and Contracting Pub. Co. · leaf 366
1,767.41 .33 0.0019 Supplies 1,430.39 .26 0.0015 Oils and grease 346.81 .07 0.0U04 Totals $33,100.60 $6.14 $0.034S The total coal consumed was 15,321,816 lbs.,an average of 41,977 lbs. per day. The averagecost of coal was $2.65 per ton of 2,000 lbs. Acomparative statement of the cost of pumpingfor… … s Fig. 15—Diagram Showing Direction ofDuration ot Fourteen Ac.ual Holes. ROADS AND STREETS SECTION ost of Crushing Rock at the PocoimaQuarry of the Los Angeles CountyHighway Commission. BY W. A. GILLETTE.* In the editorials in Engineering and Con-acting discussing the merits of force ac-iunt or day…
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