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Updated: May 29, 2025


To construct his earthly temple, the operative mason followed the architectural designs laid down on the trestle-board, or tracing-board, or book of plans of the architect.

In the volume referred to I have given a skeleton plan upon such a scale of subdivision that a tracing-board, of 5 feet by 8 feet, would be divided up into over one million parts, and, as all these subdivisions are perfect representations of the original Vesica figure with all its properties, the design of the largest building, with the minutest detail, could be drafted with absolute accuracy.

All these unique properties place the figure far above that of a square for practical work, because even when the diagonal of a square is given, it is impossible to find the exact length of any of its sides or vice versa; whereas in the Vesica rectangle the diagonal is exactly double its shorter side, and upon any length of line which may be taken on the tracing-board as a base for elevation, an Equilateral Triangle will be found whose sides are of course all equal and therefore known, as they are equal to the base, and whose line joining apex to centre of base is a true Plumb line, forming at its foot the perfect right angle, so important in the laying of every stone of a building.

The snow made music beneath her hurrying feet, the bridge by which she crossed the river cracked and echoed with the frost, and the Northern lights flashed the signals of their heavenly masonry for what knew they of plague and love and sorrow, and of the story of this poor tracing-board of time?

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