Comic Title: Detective Comics #148
Publisher: DC (National Comics Publications, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: June 1949
Approx. On Sale Date: April 22, 1949 Copyright Date April 20, 1949
Source: Library of Congress, Periodicals 1949
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: 48
Editor: Jack Schiff

Title: "The Experiment of Professor Zero"
Pages: 12

Feature(s):
Batman (of Earth-2)

Writer: Bill Finger
Penciller: Dick Sprang
Inker: Charles Paris

Reprinted In:
Batman #182 (1966)
Batman Archives Vol. 7 HC (2008)
Batman:The Golden Age Omnibus Vol. 6 HC (2019)

Feature Character(s)

• Batman (last appearance in Batman #53; next appearance in Star Spangled Comics #94)

Supporting Character(s)

• Robin (last appearance in Batman #53; next appearance in Star Spangled Comics #94)
• Commissioner Gordon (last appearance in Batman #53; next appearance in Star Spangled Comics #94)

Villain(s)

• Professor Zero (dies in this story; no further appearances)
• Beefy (Professor Zero's assistant; dies in this story; no further appearances)

Other Character(s)

• Carlyle, Gresham, and Parnell (victims of Professor Zero; no further appearances)
• Two salesmen (Joe named; no further appearances)

Synopsis:
Using a reducing ray Professor Zero shrinks wealthy businessmen and extorts them for money. When Batman and Robin begin investigating, Professor Zero shrinks them and imprisons the Dynamic Duo in a bird cage. They escape and try to rescue the captured businessmen. Professor Zero tries to kill them, but he is accidentally killed himself.

The men then seek Zero's antidote to restore themselves to normal. Batman discovers that the antidote is fake. The effects of the ray wear off automatically after three days. Batman then finds the reducing ray which Zero had hidden inside the Bat-Signal.