If [Volume 1 No. 6, January 1953] ed. James L. Quinn (Quinn Publishing Company, Inc., 35¢, 120pp+, digest, cover: The Ultimate Re-Sowing of the Human Race—4000 AD by Anton Kurka) [](Full Text)
ifc. · Expanding Sun Burns Up Earth · [uncredited] · il
ibc. · Cooling Sun Freezes World · [uncredited] · il
If [Volume 2 No. 1, March 1953] ed. James L. Quinn (Quinn Publishing Company, Inc., 35¢, 120pp+, digest, cover: Landing on Deimus by Ken Fagg) [](Full Text)
If [Volume 2 No. 3, July 1953] ed. James L. Quinn (Quinn Publishing Company, Inc., 35¢, 120pp+, digest, cover: A Volcanic Eruption on Titan, Sixth Moon of Saturn by Ken Fagg) [](Full Text)
Wraparound cover.
If [Volume 2 No. 4, September 1953] ed. James L. Quinn (Quinn Publishing Company, Inc., 35¢, 120pp+, digest, cover: A Case of Conscience by Ken Fagg) [](Full Text)
Wraparound cover.
If [Volume 2 No. 5, November 1953] ed. James L. Quinn (Quinn Publishing Company, Inc., 35¢, 120pp+, digest, cover: Surveying a Dying Sun by Ken Fagg) [](Full Text)
Wraparound cover.
If [Volume 2 No. 6, January 1954] ed. James L. Quinn (Quinn Publishing Company, Inc., 35¢, 120pp+, digest, cover: An Undersea Civilization by Ken Fagg) [](Full Text)
Wraparound cover.
If [Volume 3 No. 1, March 1954] ed. James L. Quinn (Quinn Publishing Company, Inc., 35¢, 120pp+, digest, cover: Archeological Expedition to Earth, 15,000 A.D. by Ken Fagg) [](Full Text)
Wraparound cover.
ifc. · Surface Travel at Jet Speed · Ed Valigursky · il
ibc. · Traffic Control Stations · Ed Valigursky · il
If [Volume 3 No. 2, April 1954] ed. James L. Quinn (Quinn Publishing Company, Inc., 35¢, 120pp+, digest, cover: A Space Nation Composed of Independent City Planets by Ken Fagg) [](Full Text)
Wraparound cover.