This list of critics is taken from the Princeton University Library Manuscripts Division, “Immanuel Velikovsky Papers, 1920-1996”, Series 4: Correspondence, Subseries 4E: Critics, 1940s-1990s
- American Philosophical Society: 1952-1967
- The American Museum of Natural History
- The Antioch Review
- Asimov, Isaac, 1920-
- Brown, Harrison, 1917-1986
- Burgstahler, Albert W.
- Campbell, John Wood, 1910-1971
- Cohen, I. Bernard, 1914-
- De Camp, L. Sprague (Lyon Sprague), 1907-
- Eshelman, V. R.
- Gamon, G.
- Gaposchkin, Cecilia Helena Payne, 1900-
- Gardner, Martin
- Gegenwart, ?
- Gingerich, Owen
- Goldsmith, Donald
- Grahame, David C.
- Greenberg, Daniel S.
- Gordon, Cyrus Herzl, 1908-
- Haldane, J. B. S. (John Burdon Sanderson), 1892-1964
- Harvard University
- Harvard Crimson
- Hawkins, Gerald S.
- Howell, Thomas M.
- Hyneck, Allen J.
- Irwin, William A.
- Jameson
- Kaempffert
- Kallen, Horace: 1946-1947
- Lafleur, Laurence J. (Laurence Julien), 1907-1966
- Larrabee, Eric
- Lear, J.
- Ley, Willy, 1906-1969
- Lindeman, Katherine
- London Times Literary Supplement
- McCurdy, Henry B.
- McLaughlin, Dean B.
- McTigue, Thomas P.
- Macmillan/Sizemore: 1965
- Menzel, Donald H.
- Moore, Patrick
- Lloyd, Motz
- Neugebauer, O. (Otto), 1899-
- Opik, Ernst Julius, 1893-
- Pfeiffer, Robert H.
- Pittendrigh, Colin S.
- Plummer, William T.
- Probstein, Ronald F.
- Rabinowitch, Eugene
- Roberts, Walter Orr
- Sagan, Carl
- Science
- Scientific American
- Shapley, Harlow, 1885-1972: 1946-1967
- Slichter, Louis B.
- Sloan, William
- Sokolsky, George E. (George Ephraim), 1893-1962
- Stewart, John Q.
- Urey, Harold C.
- Venus, Atmosphere
- Voorhoeve, P. E.
- Warshofsky, Fred
- Weaver, Warren
- Weinberg, Alvin Martin, 1915-
- Whipple, Fred Lawrence, 1906-
- Wildt, Rupert