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January 4, 1930


JAMA. 1930;94(1):41-43. doi:10.1001/jama.1930.02710270043015

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The Analysis of Structure by the X-Rays  Sir William Bragg, F.R.S., whose investigations of crystalline structure by the x-rays are well known, delivered the Huxley lecture on Recent Advances in Science in Their Relation to Practical Medicine. He said that analysis of structure by the x-rays should contribute to the advance of biology and medicine, because it opened up a new direction of inquiry into the relations between the properties of matter, organic and inorganic, and of atoms and molecules. The cell had been studied by the microscope, but between the formation of matter into molecules and the complicated structure of the cell lay a region which had hitherto been outside the range of vision. After forming atoms into molecules, nature's next step in making a solid body was to group the molecules in regular array. Sometimes the attempt was highly successful and the result was a visible crystal, but

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