This issue has variants.
Distributed to newstands in December 1961 (December 5 according to Joseph Marek's Marvel Comics Group history website, December 7 according to Bob Bailey). This issue includes 10 pages of paid advertisements.
Job number from Tom Lammers and Ger Apeldoorn via the Atlas/Timely discussion group.
The plot is the same as in "The Scientists" from Astonishing (Marvel, 1951 series) #9
Advertises stories in next issue. Sequence added by Bob Bailey, 12 August 2005 (Per Sandell ed.)