Ptolemy's Tetrabiblos: Book the Second: Chapter IX. The Quality and Nature of the Effect

THE discrimination of the peculiar properties and character of the effect about to be produced, and of its good or evil nature, occupies the fourth and last division of this part of the subject.

These properties must be gathered from the power of the stars which control the ruling places, and from the contemperament created by their relative admixture with each other and with the places which they control. For, although the Sun and Moon are the acknowledged sources of all the efficacy and dominion of the stars, and of their strength or weakness, and in a certain manner regulate and command them, still, it is by the theory of the contemperament, produced by the stars in dominion, that the effect is indicated.

In order to understand the indications thus made, it is necessary to begin by attending to the following detail of the effective property of each planet--previously observing, however, that, when any circumstance is said, for the sake of brevity, to come to pass by the general influence of the five planets, their temperament, and the power and assistance they may derive from natures similar to their own, the actual continuance of their own proper constitution, or the casual combination of any analogous influence, arising from fixed stars or places in the zodiac, are all, at the same time, to be kept in view. Consequently, whenever any general remark is herein made relative to the five planets, it will likewise be necessary to bear in mind both their temperament and quality; as fully, indeed, as if the stars themselves had not been named, but only their effective quality and nature. And, it is further to be remembered, that, in every case of compound temperament, not only the combination of the planets with each other requires to be considered, but also that of such fixed stars and zodiacal places as share in the natures of the planets, by being respectively connected with them according to the familiarities already described.

Hence, when Saturn may be sole governor, he will produce disasters concomitant with cold. And, in as far as the event may apply to the human race in particular, it will induce among men lingering diseases, consumptions, declines, rheumatisms, disorders from watery humours, and attacks of the quartan ague; as well as exile, poverty, and a general mass of evils, griefs, and alarms: deaths also will be frequent, but chiefly among persons advanced in age. That part of the brute creation which