The painters, in like manner, by their works, seem to be no less divided upon the subject than the authors. The French, except such as have imitated the antique, or the Italian school, seem to have studiously avoided the serpentine line in all their pictures, especially Anthony Coypel, history painter, and Rigaud, principal portrait painter to Lewis the 14th.

Rubens, whose manner of designing was quite original, made use of a large flowing line as a principle, which runs through all his works, and gives a noble spirit to them; but he did not seem to be acquainted with what we call the precise line; which hereafter we shall be very particular upon, and which gives the delicacy we see in the best Italian masters; but he rather charged his contours in general with too bold and S-like swellings.

Raphael, from a straight and stiff manner, on a sudden changed his taste of lines at sight of Michael Angelo's works, and the antique statues; and so fond was he of the serpentine line, that he carried it into a ridiculous excess, particularly in his draperies: though his great observance of nature suffer'd him not long to continue in this mistake.

Peter de Cortone form'd a fine manner in his draperies of this line.

We see this principle no where better understood than in some pictures of Corregio, particularly his Juno and Ixion: yet the proportions of his figures are sometimes such as might be corrected by a common sign painter.

Whilst Albert Durer, who drew mathematically, never so much as deviated into grace, which he must sometimes have done in copying the life, if he had not been fetter'd with his own impracticable rules of proportion.

But that which may have puzzled this matter most, may be, that Vandyke, one of the best portrait painters in most respects ever known, plainly appears not to have had a thought of this kind. For there seems not to be the least grace in his pictures more than what the life chanced to bring before him. There is a print of the Dutchess of Wharton (fig. 52, plate II,) engraved by Van Gunst, from a true picture by him, which is thoroughly divested of every elegance. Now, had he known this line as a principle, he could no more have drawn all the parts of this picture so contrary to it, than Mr. Addison could have wrote a whole spectator in false grammar; unless it were done on purpose. However, on account of his other great excellencies, painters chuse to stile this want of grace in his attitudes, &c. simplicity, and indeed they do often very justly merit that epithet.