Friderich Martens

Friderich Martens (1635–1699) was a German physician and naturalist who conducted the first scientific observations of the nature, animal life and climate of Svalbard. He published his notes in the book "''Spitzbergische oder Groenlandische Reise-Beschreibung, gethan im Jahre 1671''" and this book became a reference work for many decades. Provided by Wikipedia