《Tetrabiblos》Male Or FemaleClaudius Ptolemy（Ashmand 英譯 1822）
TWINS With respect to the probability of the birth of twins, or a greater number at once, the same places must be observed, as those mentioned in the preceding chapter; that is to say, the places of both luminaries and the ascendant.
段落 tetra-3-maleorfema-7public-domain (Ashmand 1822)
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