The knowledge of what went on within the body was therefore but vague. Life seemed to be a little air, a breath which was conveyed by the veins from member to member. "The head contains twenty-two vessels, which draw the spirits into it and send them thence to all parts of the body. There are two vessels for the breasts, which communicate heat to the lower parts. There are two vessels for the thighs, two for the neck, two for the arms, two for the back of the head, two for the forehead, two for the eyes, two for the eyelids, two for the right ear by which enter the breaths of life, and two for the left ear which in like manner admit the breaths of death." [Illustration: 310.jpg A DEAD MAN RECEIVING THE BREATH OF LIFE. 1] 1 Drawn by Faucher-Gudin, from a sketch by Naville, in the _AEgyptische Todtenbuch_, vol. i. pl. lxix. The deceased carries in this hand a sail inflated by the wind, symbolizing the air, and holds it to his nostrils that he may inhale the breaths which will fill anew his arteries, and bring life to his limbs. The "breaths" entering by the right ear, are "the good airs, the delicious airs of the north;" the sea-breeze which tempers the burning of summer and renews the strength of man, continually weakened by the heat and threatened with exhaustion. These vital spirits, entering the veins and arteries by the ear or nose, mingled with the blood, which carried them to all parts of the body; they sustained the animal, and were, so to speak, the cause of its movement. The heart, the perpetual mover--_haiti_--collected them and redistributed them throughout the body: it was regarded as "the beginning of all the members," and whatever part of the living body the physician touched, "whether the head, the nape of the neck, the hands, the breast, the arms, the legs, his hand lit upon the heart," and he felt it beating under his fingers. Under the influence of the good breaths, the vessels were inflated and worked regularly; under that of the evil, they became inflamed, were obstructed, were hardened, or gave way, and the physician had to remove the obstruction, allay the inflammation, and re-establish their vigour and elasticity. At the moment of death, the vital spirits "withdrew with the soul; the blood," deprived of air, "became coagulated, the veins and arteries emptied themselves, and the creature perished" for want of breaths.