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Hi Georgius

I don't think it was a text on this site - you probably saw my reference to this in the presentation I gave about the use of quadrant houses in ancient astrology.

The technique was used by ancient astrologers by reference to rising times and is demonstrated in the works of Valens. I hope to have my annotated edition of his book I availabe soon, and that will walk you through the procedure. But for now, I don't have anything in text form to refer to you.

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Thank you for the information!

Am I right that there will be a commented edition published as a book?
(Excuse this question—my knowledge of the English language sometimes doesn’t give a clear message to me.)