NO. 237- 238. 239. 240. 241. 242. 243- 244. 245- 246. 247. 24S. 249. 250. 251- 252. 253- 254- 255- 256. 257- 25S, 260. 261. 262. 263. 264. 265. 266. LIST OF ILLUSTRATIONS. From chf.vron to va'e Twist — the curvilinear equivalent to diagram 236 Plaits of three and four strands guilloches and their construction Twist of six strands Interlacing border — Keltic .... Strap pattern on the lines of diagram 241 Chain patterns Border of ornamentai links .... Wave-strap derived from zig-zag . Wave-strap derived from wave line Wave-strap derived from circles . Bent strap showing transition from square to lines the of a Spirals added to a wave line Consecutive spirals giving a wave line Continuous scroll, possibly derived from branching spiral scroll .... Effect of breaking across the running line SCROLL Effect of filling in spandrils in colour . Leaves designed to fit spaces Parallelism in border design .... Borders with a strong and a weak side . 239. Border plan equivalent to drop repeat and dia GRAM showing ITS RELATION TO A WAVE PATTERN Borders planned on principle shown in diagram 233 Border planned on zig-zag lines . Counterchange border on zig-zag lines Intermittent border pattern .... Block borders equivalent to the ch'ecouer pattern IN all-over design Alternating features Counterchanging geometric borders XIX PAGE 219 219 220 220 220 2 21 221 222 222 222 223 223 223 224 224 224 225 225 226 226 227 227 227 228
