I did not know that about that song from an album that I feel has been vastly underrated since it came out. I thought I read that Kurt had a sit-down with Burroughs where they stared at each other for hours, almost as if there was some sort of soul transfer between them.
While I've read 1984 and Animal Farm I've never heard of this book that you mention and will have to add it to my reading list as well. I love to read, and will often inhale multiple titles at a time, switching between each as it suits me.
What really gets me is that he was planning to take Nirvana in a totally new direction. I think I read that the music he had planned was going to be heavier. Would have like to have heard that.