- Script
- ?
- Pencils
- ?
- Inks
- ?
- Colors
- ?
- Letters
- ?
- Genre
- non-fiction; math & science; biography
- Reprints
Information for this sequence from Arthur Lortie.
- Script
- Jack Schiff
- Pencils
- Bernard Baily
- Inks
- Bernard Baily
- Colors
- ?
- Letters
- Ira Schnapp
- Genre
- non-fiction; advocacy; historical
This PSA in the form of a quiz ran in several DC Comics cover dated February 1961 and again in October 1970.
- Script
- ?
- Pencils
- ?
- Inks
- ?
- Colors
- ?
- Letters
- ?; typeset
- First Line of Dialogue or Text
- Halley's Comet
- Genre
- math & science
Letters to the Science Editor with masthead illustration of Halley's Comet.
- Script
- Gardner Fox
- Pencils
- Carmine Infantino
- Inks
- Bernard Sachs
- Colors
- ?
- Letters
- ?
- Genre
- science fiction
- Reprints
Credits for script, pencils and inks, and page count confirmed from Julius Schwartz's editorial records, provided by DC Comics. Fox, Infantino and Sachs confirmed in the letter column of Mystery in Space #75.
- Script
- ?
- Letters
- typeset
Submitted by J.S. Liebowitz, Business Manager on September 20, 1960. Average number of copies sold or distributed for each issue during the preceding 12 months was 248,000.