《Tetrabiblos》Number Of The Modes Of ProrogationClaudius Ptolemy（Ashmand 英譯 1822）
Whether a similar planisphere was known in the days of Placidus, I am not aware; but it is worthy of remark that the following words occur in his “Primum Mobile,” and seem almost to have been predicted of Mr.
段落 tetra-3-numberofth-70public-domain (Ashmand 1822)
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