Comic Title: Action Comics #334
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: March 1966
On Sale Date: January 18, 1966 Newsstand Date January 18, 1966
Source: House Ad, Action Comics #335, Page 8

Copyright Date January 18, 1966
Source: Library of Congress, Periodicals 1966

Newsstand Date January 18, 1966
Source: Newsdealer Magazine, V21 #2

Frequency: Monthly (semi-monthly, March)
Cover Price: $0.25
Page Count: 80
Editor: Mort Weisinger

See Also: The Guide to DC Giants

Notes:
This issue is labeled 80-Page Giant #G-20.
This issue contains text features: "When Supergirl Met Jimmy Olsen", "Supergirl's Two Sets of Parents", "The Origin of Super-Horse", and a page from Action Comics #285 revealing Supergirl to the world.

Title: "Supergirl's Super-Pet"
Pages: 8

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

Writer: Jerry Siegel
Artist: Jim Mooney

Reprinted From:
Action Comics #261 (1960)

Feature Character(s)

• Supergirl (last appearance in Action Comics #260; next appearance in Action Comics #262)

Supporting Character(s)

• Streaky (origin; next appearance in Action Comics #266)
• Miss Hart (last appearance in Action Comics #254; next appearance in Action Comics #262)

Cameo Appearance(s)

• Superman (several Superman dolls are seen in this story)

Comments:
Supergirl is depicted with a red skirt in this story.

X-kryptonite is created for the first time. It temporarily gives Streaky super powers.

Synopsis:
Supergirl finds a small piece of kryptonite which she takes to a laboratory. She experiments with chemicals in an attempt to find an antidote to kryptonite poisoning. She is unsuccessful and throws the piece into the woods to dispose of it.

Supergirl, as Linda, later befriends a stray cat. The cat is orange with white stripes, she names him Streaky. While playing in the woods, Streaky is exposed to the kryptonite fragment, now X-kryptonite. The radiation gives Streaky super powers. While learning to fly he smashes into a Superman doll and takes the cape.

Streaky flys around town, helping the other cats, and fights a dog. Supergirl hears Streaky and flys to check on him. She sees that Streaky is super now and plays with him. Streaky’s powers vanish suddenly. The effects of the radiation were only temporary, and Supergirl does not know what caused them.