Comic Title: Superman #177
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: May 1965
On Sale Date: March 18, 1965 Copyright Date March 18, 1965
Source: Library of Congress, Periodicals 1965

Frequency: Monthly, with the exception of March, June, Sept. and Dec.
Cover Price: $0.12
Page Count: 32
Editor: Mort Weisinger

Title: "Superman's Kryptonese Curse"
Pages: 8

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

Writer: Otto Binder
Penciller: Curt Swan
Inker: George Klein

Feature Character(s)

• Superman (last appearance in World's Finest Comics #149; next appearance in Superman #179)

Guest Star(s)

• A piece of Kryptonite (last appearance in Superman #176; next appearance in Superman #179)

Supporting Character(s)

• Lois Lane (last appearance in Superman's Pal, Jimmy Olsen #84; next appearance in Superman #179)
• Perry White (last appearance in Superman's Pal, Jimmy Olsen #84; next appearance in Superman #179)
• Krypto (last appearance in Superman #176; next appearance in Superman #179)

Other Character(s)

• Vol-Don (last appearance in Superman's Pal, Jimmy Olsen #83; next appearance in Superman #185)

Cameo Appearance(s)

• Jimmy Olsen (splash panel only)
• Supergirl (as a robot)

Comments:
This story is subtitled "Tales of Kryptonite No. 3" and continues in part in the second story of Superman #179.

Synopsis:
A piece of Green Kryptonite has travelled through space and been changed into Red Kryptonite after passing through a cosmic cloud. The Kryptonite returns to Earth and affects Superman. The Man of Steel is afflicted with being able to speak and write only in Kryptonese. He fears that the problem will cause him to reveal his secret identity as Clark Kent.

When Clark arrives at the office, Lois catches him writing and speaking Kryptonese. Superman explains in English that he was joking. Before arriving at the office, he summoned Krypto and used another piece of Red K that allows the dog to speak. Krypto then used super-ventriloquism to fool Lois into thinking Clark was speaking English.

Later at Superman's Fortress, the chunk of Red Kryptonite is transformed into Gold Kryptonite. If Superman approaches it, he will lose his powers permanently.