t doubt that Giotto drew the circle as a painter naturally would draw it; that is to say, that he set the vellum upright on the wall or panel before him, and then steadying his arm firmly against his side, drew the circular line with one sweeping but firm revolution of his hand, holding the brush long. Such a feat as this is completely possible to a well-disciplined painter's hand, but utterly impossible to any other; and the circle so drawn, was the most convincing proof Giotto could give of his decision of eye and perfectness of practice.
[Footnote 5: At least Lord Lindsay seems to consider the evidence collected by Förster on this subject conclusive. Christian Art, vol. ii. p. 168.]
Still, even when thus understood, there is much in the anecdote very curious. Here is a painter requested by the head of the Church to execute certain religious paintings, and the only qualification for the task of which he deigns to demonstrate his possession is executive skill. Nothing is said, and