The five planets already known to the ancients, as well as sun and moon, governed, according to Hermes, the following parts of the body: The sun, the right eye. The moon, the left eye. Saturn, hearing. Jupiter, the brain. Mars, the blood. Venus, taste and smell. Mercury, tongue and gullet. However, the influence which sun, moon, and the planets exercised upon the human body gradually became more intricate. It was no longer satisfactory to enumerate relations between the bodies of heaven and the human organs of such a general nature as given by the above table of Hermes. All parts and functions of the body were to be brought into the closest relations with the planets. Thus, for instance, the celebrated humanist, Marsilius Ficinus, the friend of the Medici (1433 to 1499), depicts most minutely in a book “On Life,” which was much read in its time, the relations between the body and the planets. This was also done by Heinrich von Rantzau, in his “Tractus Astrologicus,” which in its time was very celebrated. There we read regarding these conditions as follows: SATURN governs the spleen, the bladder, the bones, the teeth, and, in part, the circulating juices of the body; causes the color of the skin of man to be dark yellowish; impedes or promotes growth; causes the eyes to be small, and prevents the growth of the beard. JUPITER governs the lungs, the ribs, cartilages, the liver, arteries, the pulse, and the development of human semen; causes the white color of the skin, and gives a good figure. MARS governs the bile, kidneys, veins, and sexual organs, and of these especially the testicles; makes hair red and the temper irascible, and inclined to outrages of various kinds. VENUS governs the uterus, the breasts, the sexual organs, the spermatic tubes, the loins, and the buttocks; endows man with physical beauty, furnishes him with long hair, round eyes, and a well-formed face; but it is inexcusable on the part of this star that it presented mankind with gonorrhea. MERCURY governs all mental processes—memory, imagination, the brain with its nerves, the hands, feet, and legs, the bones and the bile; causes man to be light-fingered. THE SUN governs the brain, nerves, urine, the right eye of the male and the left one of the female, the optic nerves, and the entire right half of the body; gives a good complexion to man. THE MOON governs the brain, mouth, belly, intestines, bladder, taste, the organs of reproduction, the left eye of the male, the right eye of the female, and the feminine liver, and the entire left half of the body. The signs of the zodiac, like the planets, exert full control over the various parts of the body. Honest Bartisch, of Königsbrück (1535 to 1606), has given us in his “Eye-Service” an illustration of these relations. Fig. 4 is a reproduction of this plate of Bartisch.