Data courtesy of the Grand Comics Database under Creative Commons license.

Issue Details

Issue	#27
Published	May-June 1956
Cover Price	0.10 USD
Pages	36
Editing	Julius Schwartz
Notes	Cover pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics (29 August 2007)

Cover Details - "The Mystery of the Midget Sub!"

Characters	Rex; Danny; a dolphin
Genre	animal; adventure
Pencils	Gil Kane
Inks	Gil Kane
Notes	Cover pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics (29 August 2007)

9 page Rex story "The Mystery of the Midget Sub"

Genre	animal; adventure
Script	Robert Kanigher
Pencils	Gil Kane
Inks	Bernard Sachs
Reprinted	in Superboy Adventure Book 1957-8 (Atlas Publishing & Distributing Co. Ltd. (London), 1958 series) #1

6 page Detective Chimp story "A Whistle for Bobo"

Synopsis	Bobo becomes a traffic cop after finding a whistle in a box of cereal
Genre	animal; detective
Script	John Broome
Pencils	Carmine Infantino
Inks	Carmine Infantino
Reprinted	in Tarzan (DC, 1972 series) #234 (December 1974-January 1975)

8 page Rex story "Trail of the Phantom Cat"

Genre	animal; adventure
Script	John Broome
Pencils	Gil Kane
Inks	Bernard Sachs
Reprinted	in Superboy Adventure Book 1957-8 (Atlas Publishing & Distributing Co. Ltd. (London), 1958 series) #1