| Date | Grid | Clue | Author | Editor |
|---|---|---|---|---|
| Sat Jul 18, 1992 | 13D | Scholarly introduction to research | Daniel Girardi | Maleska |
| Sat Nov 4, 1961 | 42D | Introduction to a treatise. | Unknown | Farrar |
| Sun Feb 29, 1948 | 138A | Introduction. | Eileen St. Clair | Farrar |
| Sun Jun 30, 1946 | 110D | Introduction. | J. P. Downes | Farrar |
| Sun Jan 23, 1944 | 19D | Introduction. | Jackson Cross | Farrar |
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