Note 112 — Chapter III

I am almost afraid to allude to it even in a note, lest some one should accuse me of founding any theory upon it, like Piazzi Smyth's British inches in the Pyramids, but it is a curious coincidence that nearly all the British circles are set out in two dimensions. The smaller class are 100 feet, the larger are 100 metres in diameter. They are all more than 100 yards. The latter measure is at all events certainly accidental, so far as we at present know, but as a nomenclature and "memoria technica," the employment of the terms may be useful, provided it is clearly understood that no theory is based upon it.