Chicago : Engineering and Contracting Pub. Co. · leaf 50
$ 16.61 Cost of two stations and cross-cuts $2,292.36 COST OF UNDERGROUND OR 10 B1XS. (Superintendent, foreman and one blacksmithsalaries included under Stations and Cross- Cuts.) 1 machine man, 16 shifts, at $4.50 $ 72.00 1 mucker, 12 shifts, at $3 36.00 Powder, 504 lbs., at $0.127 64.00 Fuse, 504… … Fig. 6—Blasting in Drifting. Timber, 2,374 bd. ft., at $20 per M 47.4S Iron olate, 142.8 lbs., iron chute, 204 lbs. at $0.02% 7.80 Grizzlies, 65 sq. ft., 14 (lbs.) per sq. ft., $1 per sq. ft 65.00 Freight on iron, 1.256.S lbs., at $0.65 per 100 S.17 $313.02 Cost of two ore bins $626.04 Drifts.—The…
Buildings
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