Cyril Norman Hugh Long

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Cyril Norman Hugh Long (June 19, 1901–July 6, 1970) was an English-American biochemist and academic administrator. He was Sterling Professor of physiological chemistry at Yale University for 31 years during the middle part of the 20th century.


Cyril Long was born in England, the first of two sons of John Edward and Rose Fanny. As a young man, he did not plan to study to become a scientist. He instead experimented with diverse areas such as perfume making and working with wood. Long devoted much of his time to literature and history. As a child he enjoyed playing soccer and cricket and many times his father needed to remind him to come back home to study. He always performed well during his school years and was ranked among the best of his graduating class. He appeared to have a natural talent for chemistry and once said, "I was attracted from an early age to chemistry, largely by my own fortunate contact in an English school with a science master ... whose ways of teaching it was so effective that a large number of his students have become scientists". Long married Hilda Jarman in 1928; she was very interested in her husband's contributions to science.

Long studied organic chemistry at the University of Manchester and received his M.D. from McGill University in 1928. He served as director of the George S. Cox Medical Research Institute at the University of Pennsylvania. In 1936, Long moved to Yale University and the School of Medicine. At Yale, he was Director of the Division of Biological Sciences (1939–42), Dean of the School of Medicine (1947–52), and Chair of Physiology (1951–64).[1] He believed in the responsibility of the university towards the community and thought that the school should provide leadership in teaching and research.

In the 1930s and 1940s Long and Abraham White worked together in the Yale Medical Center. As a result of their work in 1937 they isolated bovine prolactin, the first of the protein pituitary hormones to be obtained in pure crystalline form. Later, they isolated different hormones, and later characterized and sequenced many of them, greatly contributing to modern biochemistry. Long mainly worked with the hormones of the pituitary gland and adrenal extracts of the metabolism; his major research goal was to find a cure for diabetes.

Long died on July 6, 1970.


  1. ^ Medicine at Yale, 1901-1951

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