for that reason they are lighter upon the water, and swim better than muscular people.
Chap. XLIII.—Which of the Muscles disappear in the different Motions of the Body.
In raising or lowering the arm, the pectoral muscles disappear, or acquire a greater relievo. A similar effect is produced by the hips, when they bend either inwards or outwards. It is to be observed, that there is more variety of appearances in the shoulders, hips, and neck, than in any other joint, because they are susceptible of the greatest variety of motions. But of this subject I shall make a separate treatise[1].
Chap. XLIV.—Of the Muscles.
The muscles are not to be scrupulously marked all the way, because it would be disagreeable to the sight, and of very difficult execution. But on that side only where the members are in action, they should be pronounced more strongly; for muscles that are at work naturally collect all their parts together, to gain increase of strength, so that some small parts of those muscles will appear, that were not seen before.
- ↑ It does not appear that this intention was ever carried into execution; but there are many chapters in this work on the subject of motion, where all that is necessary for a painter in this branch will be found.
