Book Id: 46532 On the existence of a hitherto unrecognized dietary factor essential for reproduction. Offprint. J. F. McClendon's copy. Herbert M. Evans, K. Scott Bishop.

On the existence of a hitherto unrecognized dietary factor essential for reproduction. Offprint. J. F. McClendon's copy

Publisher Information: 1922.

On the existence of a hitherto unrecognized dietary factor essential for reproduction. Offprint from Science 56 (1922). 4pp. 256 x 159 mm. Original printed wrappers. Faint creasing, ink notation on the front wrapper, but very good. Stamp of physiologist Jesse Francis McClendon (1880-1976) on the front wrapper.

First Edition, Offprint Issue. Announcing the discovery of Vitamin E. “In 1922, during feeding experiments on rats, [Evans and Bishop] discovered that rats did not reproduce when fed a semi-synthetic purified diet in which lard was the sole source of fat. They observed that a ‘substance X’ in lipid extracts of various grains would correct the fertility defect. The same year these findings were published in Science magazine in a joint article entitled ‘On the existence of a hitherto unrecognized dietary factor essential for reproduction’” (“Katharine J. Scott Bishop [1889-1975]”).

This copy was once owned by American physiologist Jesse F. McClendon, best known for being the first to measure the pH of the human stomach in situ; he also made important contributions to nutrition science, including pointing out the role of iodine in human health. Garrison-Morton.com 1055. “Katharine J. Scott Bishop (1889-1975).”A History of UCSF, University of California, San Francisco. Accessed 4 January 2022.

Book Id: 46532

Price: $750.00

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