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Rh not in its own sign, but in that of another planet, the two bodies act together, either with increased effect if they are of the same nature (e.g., both favourable), or neutralising each other more or less if of opposite nature.

After this necessarily very crude outline of the principles of judicial astrology, we return to Tycho's forecast of the fate of the new-born prince. It would, however, lead us too far if we were to follow him through the various proofs which he adduces for his statements, and we can only mention some of the more important ones. The years of infancy will pass without danger, as Venus is favourably placed in the ninth house, and though in the second year the opposition of Mercury to the ascending point indicates some small illness, it will be nothing serious. The years of the prince's life are then enumerated in which he will be afflicted with illness. For instance, in his twelfth year the ascendant will be in quadrature with Saturn, which indicates some serious illness "arising from black bile," but it will not be mortal. In his twenty-ninth year he will have to be very careful both about his health and his dignity, because the sun will be in quadrature with Saturn at the same time as Venus and the latter are in opposition. A very critical time will be about the fifty-sixth year, when the sun and Mars are most unfavourable, and even Venus cannot help, as she is in the eighth house. The methods of the Arabians do not show any life beyond fifty-six years, and Ptolemy's rule gives the same result. As the sun's direction to its setting gives 41$1⁄4$ years, the moon, Venus, and Jupiter add together twenty-six years, and Saturn in quadrature subtracts 10$2⁄3$ of, so that the result is about 56$1⁄2$ years. As there are so many concurring signs, the prince will