Chicago : Engineering and Contracting Pub. Co. · leaf 32
-nual report. The construction of the beds is shown by quality were made. Waters of great bacterialpurity were condemned because the free am-monia or nitrites were above certain stand-ards and waters practically free from organicmatters were given a clean bill of health,when they may have contained… … Fig. 5—General View, Floor and Tile Drains. Lateral Distributors and Risers, New Bed. the views taken about two weeks ago of thethird bed which is now under construction.The beds will be filled with blast furnace slagto a depth of 6 ft. This slag ranges in sizefrom lVz to 4 ins. in greatest…
Buildings
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
