...development of the theory had not yet reached its climax in the second century AD when both Vettius Valens and Ptolemy wrote their compendia. And both authors...influence of astrology on exact astronomy is nowhere borne out where we are able to control the details.'12 There is no need for full summary of the Anthology...

...Tetrabibhs of Ptolemy, Neugebauer and van Hoesen pointed out that simple arithmetical schemes are used "which belong to a period of astronomical theory which had been long surpassed at that time." 39 They go on to say, "the cliche which is so popular in histories of astronomy about the stimulating...

...the Anthology of Vertius Valensand the Teceabiblos of Ptolemy, simple arithmetical schemes are used "which belong to a period of astronomical theory which had been long surpassed at that time."" 0 They go on to say, the cliche which is so popular in histories of astronomy about the stimulating...