Chicago : Engineering and Contracting Pub. Co. · leaf 645
hovel workis satisfactory if proper allowance is madeffor repairs, is the right-line formula, which-is as follows:(a — b) c/d X = , where a = original value, a b = value on removalc = time in use,d = estimated life,X = % of depreciation Then X divided by the output for the period <| S70 .… … 00 VALUES OF -e IN MINUTES AND SECONDS MHN. AVG. MAX.- • BRICK YARD 188 224 345J- R. R.BORROW PIT 62 259» eoo ROCK OUT8 19 410 1309 CRUSHED STONE 103 414 e29 « EARTH AND G.DRIFT 246 4 56 103 - IRON ORE 745 24l28 61118 SAND AND G. PITS 247 3358 7224
Buildings
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
