Dr. J. Engene Nelson, who was to have joined Dr. Saul Hertz of the Medical School in a project to apply unclear physics to medicine, was killed with his wife. Anne Elizabeth, when their light plane crashed near Pine Plains New York Sunday night.

Dr. Heris issued the following statement yesterday on his colleague's death.

"It is a terrific loss to our project. It will probably hold up the development in this field (application of atomic physics to medicine), inasmuch as he has been so specifically trained in these two related fields.