About my "guesses", in Inside Living Things, at 5:15, you can hear a version of In My Remains with Mike singing the verses, probably a early demo before they recorded Chester vocals.
About Battle Axe, in the same video, at 11:18, you can see a paper with the demo lyrics. At 11:40, you can see the band, except Chester, rehearsing the first verse, in gang vocals, with some lyrical differences from the final version.
About Chicken Basket:
http://mikeshinoda.com/2009/10/17/three-updates/
"Its been a busy week. Studio every day, working on new stuff. This week, I did a song where the music sounds like Santogold (or Santigold, if you like) meets Postal Service meets At The Drive In or something. Very weirdbut even weirder, the vocals are crazyI asked our engineers what they thought it sounded like, and the responses I got were things like Peter Gabriel and Huey Lewis, in a really good way. Four-part harmonies that ebb and flow with the track. I feel like Im on drugs when Im listening to it. Its tentatively called Chicken Basket.
Another thing: what is the source for "In Yourself" studio version? I know that have one, but I really don't remember which is...