I wrote about learning Esperanto with this book and wanting to make it available via Project Gutenberg. Our first request was denied because the laws make the rights unclear, so we solicited a letter from the publisher that would establish the work as public domain. We got a reply, forwarded the letter to PG and, on Christmas morning, the email giving us clearance was in my in-box! The project is on!
I'm about half-done with scanning -- I'll head back down to the basement tomorrow and see if I can get it finished. I expect another 4 to 6 hours will finish it off. I'm really pleased that this book is going to be available to the public again. In some ways, it is a bit dated (as it was published in 1906. Nevertheless, the fundamentals of Esperanto haven't changed a bit and the commentary that describes the grammar is exceedingly well-written.