It consisted of about a thousand volumes advocating various unorthodox ideas: hollow-earth, geocentricity, creationism, Velikovskyism, perpetual motion, racism, anti-semitism, anti-Catholicism, Bigfoot, the Loch Ness monster, flying saucers, bizarre religions, and so forth, as well as the worlds most extensive collection of 19th and 20th century flat-earth literature.