Page:A Treatise on Painting.djvu/134

 more or less marked, in proportion as they co-operate in the same motion.   the arm joins with the hand, there is a ligament, the largest in the human body, which is without muscles, and is called the strong ligament of the Carpus; it has a square shape, and serves to bind and keep close together the bones of the arm, and the tendons of the fingers, and prevent their dilating, or starting out.   bending the joints the flesh will always form a crease on the opposite side to that where it is tight.   the arms are carried behind the back, the elbows can never be brought nearer than the length from the elbow to the end of the longest finger; so that the fingers will not be seen beyond the elbows, and in that situation, the arms with the shoulders form a perfect square. The greatest extension of the arm across the chest is, when the elbow comes over the pit of the stomach; the elbow and the shoulder in this position, will form an equilateral triangle.   figure being strongly marked, so as to give a distinct view of all the muscles, will not Rh