I. The 'Mather & Platt' System at Messrs Rylands & Sons,
Chorley,.
I. The Candy Upward Flow' Tank, Barrowford,
III. Paper Mill at Darwen-Collapsed Wall in Precipitation Tanks,
IV. Paper Mill, Darwen-Tanks as rebuilt,
V. Blackburn Corporation Sludge Pressing Plant,
VI. Birch's Precipitation Tanks at Oakenshaw Print Works,
Accrington,
VII. Thermal Aerobic Filters, Accrington Sewage Works,
VIII. Farington Sewage Works, Preston Rural District Council,
IX. Fountains Free Brewery Co., Ltd., Blackburn, Anti-Scouring
Tank and Sprinkler Filter,
X. Precipitation Tanks, Messrs Stannings & Co., Ltd., Leyland,
XI. Precipitation Tanks, The Whalley Abbey Co., near Black.
burn,
XII. Bleach Department Precipitation Tanks, Messrs Grafton &
Co., Accrington,
XIII. Messrs Peel, Tootal & Co., Tanks and Sprinkled Filter,
XIV. Dyeing Department Tanks, Messrs Grafton & Co., Accrington,
XV. Precipitation Tanks, Messrs Steiner & Co., Ltd., Church,
XVI. Low Mill Bleaching and Printing Co., Precipitation Tanks,.
XVII. Precipitation Tanks with Furnace in rear, Messrs Kearns,
Allen & Co., Baxenden,
XVIII. Darwen Paper Mill Precipitation Tanks,
XIX. Burnley Paper Co.'s Precipitation Tanks,
XX. Precipitation Tanks, Sun Paper Mill, Feniscowles, near Black. burn,
XXI. Precipitation Tanks and Sludge Drainers, Messrs Peebles & Co., Ltd., Rishton Paper Mill,