1. Significance of the discovery of X-ray diffraction 2. The various approaches to the concept of space lattice 3. The dual nature of light 4. Rontgen and the discovery of X-rays 5. The nature of X-rays: waves or corpuscles? 6. The discovery of X-ray diffraction and the birth of X-ray analysis 7. The first steps 8. The route to crystal structure determination 9. X-rays as a branch of optics 10. Early applications of X-ray crystallography 11. Unravelling the mystery of crystals - the forerunners 12. The birth and rise of the space-lattice concept
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