The folks over at The Goat Island Project have uncovered a stash of patches and notebooks from the second Miskatonic University Antarctic expedition. Ordering information and more pictures are available at the link.
Update: In response to some emails, although I have no involvement with this project I heartily support it. One of the unique things about Lovecraft's Mythos is that it was an open source, shared world right from the beginning. I personally like material based on the existing canon, but the post-classic era is ripe for development. Frankly, the more people playing in the sandbox, the better.