Typed letter from H.J. Muller to Elof Carlson regarding an abstract by Elof, 1959.

Typed letter with handwritten notes in the body of the letter from H.J. Muller to Elof Carlson, 1959.

Typed letter from H.J. Muller to Elof Carlson, 1959.

Typed letter with handwritten postscript from H.J. Muller to Elof Carlson.

Typed postcard from H.J. Muller to Elof Carlson regarding the reception of fly cultures sent by Elof.

Typed letter from H.J. Muller to Elof Carlson with handwritten notes in the body of the letter, 1958.

Handwritten note from Elof Carlson requesting a meeting with H.J. Muller about his thesis, 1958.

Handwritten note from H.J. Muller to Elof Carlson regarding a National Science Foundation research assistantship with an attached copy of a letter to Bowen D. Dees, Program Director for Fellowships at the National Science Foundation in Washington…