This issue has variants.
Editorial page with illustration.
Part 3 of 14
Part 13 of 32. Part 12 appears in the June 1978 issue.
Letters credit from http://kleinletters.com/.
Part 3 of 8.
Part 1 of 5
Part 5 of 9
Title from Table of Contents. One-third of the page vertically.
Rest of page is ad (with previous page) for issues of Heavy Metal Magazine.
Part 3 of 3.
Part 3 of 6
Last appearance was in the March 1978 issue. I think this is still the same continuing story despite "The End" on the last two chapters.