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Light on Industry: Promoting the use of perspex in industrial buildings to provide lighter work spaces. Interiors of factories, freezing works, garage business and farm buildings.
Auckland's Drainage Problem: Auckland's sewerage disposal. Sequences of the night carts collecting sewerage from suburban Auckland homes. Aerial views indicate the pollution of Manukau Harbour from the sewerage outfall at Orakei. A brief history of sewerage treatment plans is given, including the short lived pump at Browns Island (halted by the Auckland Drainage Board) and an explanation of the Manukau sewerage treatment scheme. The problem of disposing freezing works waste is discussed. Sequence of drainage board chemist testing a sample of Manukau water by smelling it.