《Tetrabiblos》The Periodical Divisions Of TimeClaudius Ptolemy（Ashmand 英譯 1822）
after the number of years which have elapsed since the birth has been ascertained, the amount is to be projected from each place of prorogation, in the succession of the signs, at the rate of one sign for a year,[278] and the lord of the last sign[279] is to be assumed as arbiter.
段落 tetra-4-theperiodi-29public-domain (Ashmand 1822)
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