Which preposition to use with ammonius

in Occurrences 2%

Ammonius in Bayle's Life of him, but the saying was of the reign of Henry VIII.]

on Occurrences 1%

- I was much pleased to find that this very respectable prelate is a great admirer of Aristotle, and that extracts from the Commentaries of Simplicius and Ammonius on the Categories of that philosopher, are read by his orders in the college of which he is the head.

Which preposition to use with  ammonius