Notes: Vol. 21, No. 3, Issue 158. February listed on the cover and spine but January-February on the table of contents. Cover suggested by "Patterns of Chaos" as noted on the Contents/copyright page. UK price £0.25, this issue was distributed in both US and UK. Note by editors on page 175 noting that the story "To Kill a Venusian" (Sept.-Oct. 1971) was plagiarized. The original story was called "Nine-Finger Jack" by Anthony Boucher and published in F&SF, August 1952. Average paid circulation for 1971: 37,974. A notice on page 176 states that "a small number of IF and GALAXY date September-October 1971 or November-December 1971, were placed on sale with pages missing or repeated." The full text and images of this edition are available at The Internet Archive, see web page for link.