Comic Title: Action Comics #276
Publisher: DC (National Comics Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: May 1961
On Sale Date: March 30, 1961 Newsstand Date March 30, 1961
Source: House Ad, Superman #145, Page 11

Newsstand Date March 30, 1961
Source: Newsdealer Magazine, V16 #1

Copyright Date March 30, 1961
Source: Library of Congress, Periodicals 1961

Frequency: Monthly
Cover Price: $0.10
Page Count: 32
Editor: Mort Weisinger

Title: "Supergirl's Three Super Girl-Friends"
Pages: 12

Feature(s):
Supergirl (of Earth-1)

Writer: Jerry Siegel
Artist: Jim Mooney

Reprinted In:
Superboy #147 (1968)
Adventure Comics #493 (1982)
Legion of Super-Heroes Archives Vol. 1 HC (1991)
Superboy #147 Replica Edition #1 (2003)
Supergirl Archives Vol. 2 HC (2004)
Showcase Presents:Legion of Super-Heroes Vol. 1 TPB (2007)
Showcase Presents:Supergirl Vol. 1 TPB (2008)
Supergirl:The Silver Age Omnibus Vol. 1 HC (2016)
Supergirl:The Silver Age Vol. 1 TPB (2017)
Legion of Super-Heroes:The Silver Age Omnibus Vol. 1 HC (2017)
Legion of Super-Heroes:The Silver Age Vol. 1 TPB (2018)

Feature Character(s)

• Supergirl (last appearance in Action Comics #276; next appearance in Action Comics #277)

Guest Star(s)

• Legion of Super-Heroes (last appearance in Adventure Comics #282; next appearance in Adventure Comics #290)
• Cosmic Boy (last appearance in Adventure Comics #282; next appearance in Adventure Comics #290)
• Saturn Girl (last appearance in Adventure Comics #282; next appearance in Adventure Comics #290)
• Lightning Lad (last appearance in Adventure Comics #282; next appearance in Adventure Comics #290)
• Triplicate Girl (first appearance; last appearance in Adventure Comics #282; next appearance in Adventure Comics #247)
• Phantom Girl (first appearance; last appearance in Legion of Super-Heroes #295; next appearance in Adventure Comics #290)
• Chameleon Boy (behind-the-scenes; last appearance in Adventure Comics #282; next appearance in Adventure Comics #290)
• Colossal Boy (behind-the-scenes; last appearance in Adventure Comics #282; next appearance in Adventure Comics #247)
• Brainiac 5 (first appearance; next appearance in Adventure Comics #290)
• Shrinking Violet (first appearance; a Legion applicant; joins the Legion of Super-Heroes shortly after this story; next appearance in Adventure Comics #247)
• Sun Boy (Dirk Morgna; first appearance; a Legion applicant; last appearance in Adventure Comics #348; next appearance in Adventure Comics #290)
• Bouncing Boy (Chuck Taine; a Legion applicant; next appearance in Adventure Comics #301)

Supporting Character(s)

• Jerro (last appearance in Action Comics #270; next appearance in Action Comics #278)

Guest Appearance(s)

• Lori Lemaris (last appearance in Superman's Pal, Jimmy Olsen #52; next appearance in Superman's Pal, Jimmy Olsen #53)
• Krypto (last appearance in Superman #144; next appearance in Action Comics #277)

Other Character(s)

• Frankie Hudson (a TV star; no further appearances)
• Three teenage girls of Midvale Orphanage (Janice and Elaine named; no further appearances)

Cameo Appearance(s)

• Superman (in flashback)
• Brainiac (in flashback)
• Koko (in flashback)

Comments:
This is the last story which mistakenly states that new members are admitted to the Legion only once a year.

Due to the loss of accurate historical records of the 20th century, the account given by Brainiac 5 in this story is not the true final fate of Brainiac.

Synopsis:
One year after first meeting the Legion, Supergirl is once again invited to try out for membership. In the 30th century, she is told that new rules allow two members to join each year, and meets several other applicants, including Brainiac 5, the descendant of the original Brainiac, one of Superman’s greatest foes. She distrusts him until, after her own initiation test, he risks his life by giving her his force-shield belt to protect her from a giant Kryptonite meteor.

Along with Brainiac 5, who allows her to keep the belt, Supergirl is inducted into the Legion. She returns home confident that she’ll never have to worry about Kryptonite again; however, an explosion damages the belt beyond repair, and she is vulnerable once more