London: Nature, 1951. 8vo. 7pp. Original printed wrappers. Lightly age-darkened. Item #403316
FIRST EDITION, OFFPRINT ISSUE, SIGNED by Gosling on the front wrapper. This important paper is illustrated with electron microscope photographs of fibers of sodium thymonucleate (4 copies of two side-by-side prints). Wilkins' studies of sodium thymonucleate led him to Raymond Gosling, a graduate student working with outdated x-ray equipment. Despite the limitations of the technology, they were able to produce several landmark pictures of proteins in crystalline forms.