First pressing from 1750 Arch Records, still shrink wrapped! Support Other Minds by buying this collector's item. Insert contains detailed notes and photos.

Volume Four track listing:
Side One:

Study No. 9, Study No. 11, Study No. 12, Study No. 13, Study No. 16, Study No. 17, Study No. 18, Study No. 19

Side Two:

Study No. 27, Study No. 28, Study No. 29, Study No. 34, Study No. 36