https://www.nobelprize.org/prizes/chemistry/1946/ceremony-speech/
Award ceremony speech - NobelPrize.org
The Nobel Prize in Chemistry 1946 was divided, one half awarded to James Batcheller Sumner "for his discovery that enzymes can be crystallized", the other half...
award ceremony speech
https://www.nobelprize.org/prizes/chemistry/1970/ceremony-speech/
Award ceremony speech - NobelPrize.org
The Nobel Prize in Chemistry 1970 was awarded to Luis F. Leloir "for his discovery of sugar nucleotides and their role in the biosynthesis of carbohydrates"
award ceremony speech