This one really sounds to me like a very intresting book. However, I am sorry to say that it is not pd for everybudy, since the author died in 1954. There for, I will not start this book myself- because I start only books which are pd in death+70 years cuntries. However, I will be very happy to see this book recorded for Librivox. It really deserves being recorded.
Edit: etext - http://www.gutenberg.org/ebooks/7171