Google Books and Personal Libraries

I've long struggled to answer one question: "Who owned the theatrum machinarum?" I've come across a few different sources but Google books provides a valuable hedge:

subject:"Private libraries" machinarum

Incidentally, check out pg. 25 of Bibliotecha Krunitziana for a rare appearance of Captain Jelly Finger.

And some more Captain Jelly Finger: http://books.google.com/books?id=aDwDAAAAQAAJ&pg=PA286&dq=history+of+strength+of+materials&as_brr=1#PPA279,M1