Approach 1: Search for books ABOUT a person or other subject, or search for a known book. Search Discover@MU, with the UM Books filter on, to look through titles, subject headings, some tables of contents.
Approach 2: To find books that MENTION a particular work, person, technology, named idea, etc., use full-text searches. Search HathiTrust and use the Find In a Library function.
Approach 3: Browse lists of books on the topic of ancient science/medicine, and find books that look useful to you. Then investigate them further - see if we own them, and see if you can view or search some of their text. If you think the library should buy a copy (especially if there are no other copies in the system), use the Purchase Recommendation Form.