Jackson, Frank G · London : Chapman & Hall · leaf 140
he sameharmony is preserved between the primary and secondaryveins. In order to further secure harmony and unity in acomposition, it is necessary that lines should not onlyhave a certain parallelism in their relation to oneanother, but also a continuity in arrangement; and,although lines may be… … I 2 DIRECTION OF LINES. 127 take the same course, indicated in the figure by thedotted line; or as in theannexed illustration, in whichthe long curve 1 is parallelto the boundary of theborder, the termination of the spiral 2 is drawn so asto follow the trajectory of the line 3, as well as torepeat…
Decoration and ornament
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