Page images from The Structure of Some Crystals as Indicated by their Diffraction of X-rays. (Proceedings of the Royal Society of London 1913, A89, 248-277.)
Page 46 from WILLIAM L. BRAGG (1890 - 1971). The Diffraction of Short Electromagnetic Waves by Crystals. (Proceedings of the Cambridge Philosophical Society 1913, 17, 43-57.)