Henry P. Coolidge, a retired instructor of English literature, died Jan. 9. He was 84. Coolidge was an alumnus of Harvard College and taught here for about 10 years.

Zoll, Professor of Medicine Emeritus

Paul M. Zoll, clinical professor of medicine emeritus, died Jan. 5. He was 87. He was a cardiologist and pioneer in developing the heart monitors, pacemakers, and defibrillators used by millions around the world. He won an Albert Lasker Clinical Medical Research Award in 1973.