The Letters and Papers of Jan Hendrik Oort
Katgert-Merkelijn, J. K. The astronomer Jan Hendrik Oort (1900-1992) left behind an extensive collection of notes and correspondence, both on his research and on matters that concerned him in a variety of official functions. Upon Oort's death, the collection was augmented by more personal papers, letters, journals, and diaries.
The resulting collection forms a rich source of information on many aspects of twentieth-century astronomy, in which Oort played such an imp...