> It can be found online at archive.org, but unfortunately not the "Curious Collection."

One page of the "Curious Collection" is viewable at the ECLAP website. (For tens of thousands of Euros you can access the entire book as well as the entire collection of of the "E-Library for the Performing Arts.)

The page shows music only and its instrumental-friendly format suggests to me that no lyrics were included. It is a "tune" book after all.

Inconclusive, of course, but an indication of what someone with access to the book might expect to find. Or not.