Dionysian vs zoological

Dionysian

adj

Of or pertaining to Dionysus.

noun

A follower of Dionysus.
One who is dionysian.

zoological

adj

Of, or relating to, animals.
Of, or relating to, zoology.

How often have the words Dionysian and zoological occurred in a corpus of books? (source: Google Ngram Viewer )