Steve,
Yeah, my copy of Journal of a Trapper is getting pretty ragged as well!
I suspect there were two reason it didn't make the book list of the course: UM was still on the quarter system then, and there wasn't enough time for the poor students to read FOUR books for the class, and the professor didn't regard Journal of a Trapper as "literary" enough for the course. He was kind of pompous. Imagine that!