—, dark paper from, [103]
— fibres, dimensions, [39]
—, forms in which employed, [53]
—, general chemical characteristic, [53]
—, micro-chemical reactions, [52]
—, microscopic features, [52]
—, objection to acid in bleaching, [112]
—, reactions, [17]
—, treating for paper, [64]
—, willowing, [103]