Calvin S (Calvin Springer) 19 Hall

Calvin Springer Hall, Jr. (1909–1985), commonly known as Calvin S. Hall, was an American psychologist who studied dream research and analysis. He began systematic research on dreams in the 1940s and wrote influential books including *A Primer of Freudian Psychology* and *A Primer of Jungian Psychology*, while also developing a quantitative content-analysis system for dreams.