Peter Simon Pallas

In 1793 Peter Simon Pallas, as a result of his study of the two principal mountain ranges of Siberia, decided that the characteristic structure of mountain ranges was a central core of granite with schistose rocks containing no fossils along the flanks of the granite, and with fossil-bearing limestone rocks lying outside and above the schistose.

Dictionary of the History of Ideas LEONARD G. WILSON 1968

Peter Simon Pallas was a German naturalist, who had been summoned to

Celebrated Travels and Travellers Part 2. The Great Navigators of the Eighteenth Century Jules Verne 1866

John discusses an example by the German naturalist, Peter Simon Pallas, in his

Thoughts in a Haystack 2009