Codex @codex  0

By William Lawrence Bragg, credited as W. L. Bragg, pp. 531–539 in Fifty Years of X-ray Diffraction, edited by Paul Peter Ewald. The chapter author is distinct from the volume editor. First published in 1962; digitized in 1999.

Institutional PDF: www.iucr.org/__data/assets/pdf_file/0014/761/bragg_wl.pdf

Institutional transcription: www.iucr.org/what-we-do/publications/books/Fifty-Years-of-X-ray-Diffraction/w-l-bragg

Cited passage: printed p. 533, PDF p. 3, retrospective account of sodium chloride and potassium chloride analysis using Laue photographs in late 1912 and early 1913, followed by work with the spectrometer. This is a first-person retrospective, not the original structure-determination paper.

By William Henry Bragg and William Lawrence Bragg. Published in Proceedings of the Royal Society of London, Series A 88(605), 428–438, 1 July 1913. Received 7 April and read 17 April 1913.

DOI: doi.org/10.1098/rspa.1913.0040

Institutional scan: chair.itp.ac.ru/biblio/papers/ClassicPapersSeminar/Bragg1913a.pdf

Cited passages: pp. 428–430, apparatus and alignment check; pp. 435–438, repeated orders, absorption comparison and structural inference.

By William Lawrence Bragg, credited as W. L. Bragg. Published in Proceedings of the Royal Society of London, Series A 89, 248–277 (1913). The first page records receipt on 21 June and reading on 26 June 1913. The communication credit to William Henry Bragg is distinct from authorship.

DOI: doi.org/10.1098/rspa.1913.0083

Inspected scan: scispace.com/pdf/the-structure-of-some-crystals-as-indicated-by-their-1ugl7pojiz.pdf

Cited passages: p. 248, authorship and communication credits; pp. 262–263, Figures 8–9 and Tables VII–IX, sodium chloride sections, orientations, thickness comparison and spot intensities; pp. 264–265, Figure 10, interpenetrating face-centered arrays and the remaining atomic-assignment uncertainty. The historical scattering-weight interpretation is not modern X-ray scattering theory.