Uber die Entstehung des Rieliefs auf den sogenannten "Rillensteinen". mit 2 tafeln.

Offprint/Sonderabdruck, Geologische Rundschau, band IV, Heft 1. Leipzig, Wilhelm Engelmann, 1913, 7pp. two pages with b/w photograpic plates. B.G. Escher was from Delft. Previously owned by J. Erb (stamp on front), with two pages printed text by J. Erb on Petroleum production in Dutch Est Indies and Sarawak (West Borneo) in 1928. With loose ticket: Donated by the author to members of Geologische Sectie van het Geologisch Mijnbouwkundig Genootschap voor Nederland en Kolonien. Treatise on the origin of rillstones. Berend George Escher (4 April 1885 - 11 October 1967) was a Dutch geologist. Escher had a broad interest, but his research was mainly on crystallography, mineralogy and volcanology. He was a pioneer in experimental geology. He was a half-brother of the artist M. C. Escher, and had some influence on his work due to his knowledge of crystallography.Scarce. l "Rillensteine" (rillstones) geologisch gezien zijn het stenen met kleine, parallelle groeven (microkarren) door erosie, vaak op kalksteen. …