I had read ("somewhere on-line" - so much for that provenance
) that both D'Ooge books never had Keys
to begin with as it was the job of the Teacher to work out solutions to exercises with His/Her pupils in class.
Yet your scan was obviously once a published product.
I mentioned in another post that I wrote to the current publishers, "Super Review" and they said they had no Key.
That person was Diane Goldschmidt the Senior Editor. She can be reached here: firstname.lastname@example.org
Maybe you could work a deal ? Whatever. Who knows?
It is very similar to "Latin for Beginners" but there are differences including different advanced reading matter although
that is far beyond my meager abilities as of yet. Also, you can get a PB copy at Border's for $8.00 U.S. so those who
like having paper copies in hand now have another learning option. Much cheaper than the Kessinger Reprints of LfB.