Jackson, Frank G · London : Chapman & Hall · leaf 62
ll asthe sides of the squares, as in Figs. 1, 2, 3 ; secondly,by the use of semicircles, struck from the angles ofthe squares, in combination with right lines (see Figs.4 and 5). The details filled in follow the original linesof the pattern. The production of patterns upon asimple basis of squares… … PLATE. IX
Decoration and ornament
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