Dimitrij Andrusov

Slovak geologist (1897–1976).

Born November 7th, 1897 in Tartu. [ref]

Died April 1st, 1976 at 78 years old in Bratislava.

Occupations
geologist, paleontologist, university teacher
Wikipedia

Mostly it is loss which teaches us about the worth of things. Arthur Schopenhauer