— — drums, emptying, [179]

— —, prices, [179]

— — solutions, table of strengths, [109]

Causticisers, [188], [192]

Causticising, [187]

— by ferric oxide, [232]

—, lime used, [190]

—, oxygenating during, [191]

Cellular tissue in straw, [103]

Cellulose, [4]