It is true that Pingree wasn’t making a distinction between consultation charts and interrogational astrology when he translated the Yavanajataka, although later in his life, at some point in the 90’s, he seems to have realized that there wasn’t any interrogational astrology in the Yavanajataka. I assume at that point that he realized that there was a distinction, although aside from changing his stance on the horary issue I haven’t found anything in his later writings which explicitly indicates that he acknowledged the distinction.

I am in the process of trying to acquire a better translation of the Satpañcasika right now, and once I do I should be able to determine whether or not it was indeed fully interrogational, or whether it was still largely based on the consultation chart. I strongly suspect that this is the point at which horary became pronounced in the Indian tradition though, and if you look at Pingree’s notes in the Yavanajataka you see that he ended up reconstructing large parts of the later ‘interrogational’ chapters of the Yavanajataka based on the work of Varahamihira. This may have been the reason why he initially thought that the Yavanajataka dealt specifically with questions.

I’m glad to hear that you enjoyed the CCAG scans! Although I did pass those off to Pingree’s student, I cannot take credit for scanning them, as they were given to me by Rob Hand. I am in the process of scanning volumes 8 through 12 now though. Some are still under copyright though, so we may not be able to put them all up on the same website.

BTW, Chris, will you upload more volumes of CCAG to the Pingree memorial webpage? I would like to express how grateful I am as you have uploaded some.

Pingree points out in his paper From Alexandria to Baghdad to Byzantium (pg. 16): “In the preface to his , Theophilus refers to the Περι καταρχων διαφόρων as the κοσμικαι αποτελεσεις και αι πευσιν καταρχαί (“cosmic effects and initiatives in accordance with interrogation”), thereby signalling the relationship of catarchic to interrogational astrology.” This statement from Theophilus is in CCAG 5, part 1, pgs. 234-238.

As far as the Indian tradition goes, Varāhamihira’s son Prithuyasas (c. 550) wrote an important work on horary titled Shatpanchasika. What is interesting is that Pingree points out that Theophilus was drawing on Varāhamihira in his work in military astrology. One wonders if Indian works on interrogational astrology also influenced Theophilus.