Piggott, Francis Taylor, Sir, 1852-1925 · London, B. T. Batsford · leaf 42
ted wave<lesigu given in fig. 2 (pi. 9) is constructed, one of the waves being given com-plete with all its tangential circles There are six inner circles, the ripples : thecentres of each being on the lower half of the vertical diameter, falling on it a■distance equal to half the breadth of the…
Decoration and ornament
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