1914 · London
by Bragg, William H.
London: William Clowes & Sons, 1914. Bragg, William Henry (1862-1942). X-rays and crystalline structure. Offprint from Proceedings of the Royal Institution of Great Britain 21 (1914). 10pp. 212 x 140 mm. Without wrappers. Light soiling, small rust-stains from staples, one corner creased but very good. First Edition, Offprint Issue of W. H. Bragg's paper summarizing the progress to date in x-ray crystallography, a field he and his son W. Lawrence Bragg originated, and which remains one of the essential analytic tools of physics, chemistry and molecular biology. Prior to 1912, scientists had very little knowledge about the solid state of matter, but in 1912 came the Friedrich-Knipping-Laue paper showing that x-rays can be diffracted by crystals. The Braggs used Laue's discovery to determine the actual positions of atoms in crystals, with Lawrence Bragg providing the theoretical basis for crystal structure analysis and William Henry Bragg contributing the x-ray spectrometer, which measures the strength of an x-ray beam reflected from a crystal face. This paper predates the famous book by the Braggs entitled X-Rays and Crystal Structure (1915). In 1915, the year after this paper was published, the Braggs shared the Nobel Prize for physics for their studies of crystal structure by means of x-rays, becoming the first-and so far, the only-father and son team to win a Nobel. (Inventory #: 44419)