— and hot water, [21]
— and hydrochloric acid, [22]
— and mineral acids, [20]
— and nitro-sulphuric acid, [22]
— and sulphuric acid, [22]
—, animal digestion of, [23]
—, decay of, [23]
—, decomposition by heat, [23]
—, distribution, [23]
—, treating for paper, [64]