... 87 6Romans 18 baths and sanitation 9 18 brass andzinc artefacts 75 bridges 19, 462–3 buildingand architecture 19–20, 85 6, 85 9, 86 8, 87 3, 87 5, 87 6, 87 9 80 , 88 5, 88 7 8, 88 9 canals475–6, 490 central ... INDEX OF TOPICS1055roller mill (corn) 257roller printing (textiles) 83 5rolling mills 28, 152, 180 , 381 Roman cement 88 8, 88 9Roman mill 19, 20Romanesque architecture 87 4, 87 5, 87 6Romans 18 ... 532–7, 980 , 987 8 dockyards for552INDEX OF TOPICS1057spinning 16, 28, 80 8 81 0 Casablanca systems 84 1 gill boxes 84 0–41 mechanization 82 3–30, 83 7 8 open end (break) 84 2 rovingframe 83 9 self-twist...