Comic Title: Detective Comics #238
Publisher: DC (National Comics Publications, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: December 1956
Approx. On Sale Date: October 25, 1956 Copyright Date October 23, 1956
Source: Library of Congress, Periodicals 1956
Until 1958 DC did not report actual on sale dates to the copyright office
The publication dates listed in LoC records are NOT release dates.

Frequency: Monthly
Cover Price: $0.10
Page Count: 32
Editor: Jack Schiff

Title: "Earth Detective for a Day"
Pages: 6

Feature(s):
Martian Manhunter (of Earth-1)

Artist: Joe Certa

Reprinted In:
Showcase Presents:Martian Manhunter Vol. 1 TPB (2007)

Feature Character(s)

• Martian Manhunter (last appearance in Detective Comics #237; next appearance in Detective Comics #239)

Villain(s)

• Booby-Trap Bagley (no further appearances)

Other Character(s)

• Lieutenant Saunders (last appearance in Detective Comics #227; no further appearances)

Comments:
For the second time, J'onn temporarily loses his martian powers because of a comet in close proximity to Earth.

Synopsis:
While pursuing a dangerous criminal, Booby-Trap Bagley, detective John Jones loses his martian powers. A comet making an annual pass of Earth is responsible. Jones tracks the thief as an ordinary earthman. He is even able to approach fire without weakness. Jones survives several traps uses his wits and skill, then he apprehends Bagley. John's powers return when the comet leaves Earth's proximity.