—, general chemical characteristic, [48]

—, micro-chemical reaction, [48]

—, microscopic features, [48]

— sections, [48]

Forbes’ beater, [122]

Fourdrinier machine, [145]

Francke’s bisulphite process, [72]

Friction-glazing, [169]

Fry, Ransome, and Wilkie’s wood-splitting machine, [74]

Furfural, [21]