Knud Jessen

Knud Jessen (29 November 1884 – 14 April 1971) was a Danish

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Biography

Jessen was born at Frederiksberg, Denmark. He was a student at the

in natural history and geography with botany as a major in 1911.

He was state geologist 1917–1931. In 1931, he succeeded

Jessen had come into contact with the

Jessen was acknowledged by honorary doctorates at the University of Cambridge and University of Dublin. He was a member of the Royal Danish Academy of Sciences and Letters and served on the board of directors of the Carlsberg Foundation. Jessen also lived in the Botanical Gardens in his later life. He became a Knight in the Order of the Dannebrog in 1936 and Commander 2nd degree in 1949.

Personal life

Jessen married Ingrid Holm (1884-1984) and had four children, including Poul Holm Jessen, a chemist who founded and ran the plastics company Scandiflex.

Selected scientific works

• Jessen, K. (1920) Moseundersøgelser i det nordøstlige Sjælland. Med Bemærkninger om Træers og Buskes Indvandring og Vegetationens Historie (Bog investigations in Northeast
  Zealand
  with notes on the immigration of trees and shrubs and the development of the vegetation). Doctoral dissertation. Danmarks Geologiske Undersøgelse, II.række, 34, 1-243.
• Jessen, Knud; Lind, Jens (1922). Det danske Markukrudts Historie [History of Danish Arable Weeds]. Kongelige Danske Videnskabernes Selskabs Skrifter - Naturvidenskabelig og Mathematisk Afdeling, 8.Rk. (in Danish). Vol. 8. p. 496.
• Jessen, K. & V. Milthers (1928) Stratigraphical and palaeontological studies of interglacial fresh-water deposits in Jutland and northwest Germany. Danmarks Geologiske Undersøgelser II rk. Vol. 48: 1-379.
• Jessen, K. with the assistance of
  Kongelige Danske Videnskabernes Selskab
  12 (1): 1-64.
• Jessen, K. (1949) Studies in Late Quaternary deposits and flora-history of Ireland. Proceedings of the Royal Irish Academy 52, sect. B, no. 6: 85-290.

References