Molengraaff

G.A.F. Molengraaff

Achtergrond van de naam Gustaaf in de familie

W.F. Gisolf gaf aan zijn jongste zoon dezelfde namen als die van zijn vriend G.A.F. Molengraaff, te weten Gustaaf Adolf Frederik. Hieronder volgt uit de Wikepedia het aan Molengraaff gewijde lemma, waarin ook het verder in de familie doorgaande gebruik van de naam Gustaaf voortkomt.

Gustaaf Adolf Frederik Molengraaff (February 27, 1860 Nijmegen - March 26, 1942 Wassenaar) was a Dutch geologist, biologist and explorer. He became an authority on the geology of South Africa and the Dutch East Indies.

Gustaaf Molengraaff studied mathematics and physics at Leiden University. From 1882 he studied at Utrecht University. As a student he made his fist journey overseas when he joined the 1884-1885 expedition to the Dutch Antilles led by W.F.R. Suringar and K. Martin. He became PhD with a thesis on the geology of Sint Eustatius. He studied crystallography in Munich, where he also took the opportunity to study the geology of the Alps nearby.

In 1888 Molengraaff took a job as a teacher (later as professor) at the University of Amsterdam. Before his assignment courses in geology were given by the chemist J.H. van 't Hoff. During his assignment in Amsterdam Molengraaff travelled to South Africa to study gold deposits (1891) and to Borneo (1894) where he explored large parts of the inland. Teaching at Amsterdam was not to his liking, because there were too little materials and students available.

In 1897 Molengraaff became "state geologist" of the Transvaal Republic. His task was to start the geological survey of the Transvaal. While mapping the Transvaal he discovered the Bushveld complex. In 1900 he got involved in the Second Boer War and had to return to the Netherlands. This gave him time to write a report on the geology of the Transvaal, and travel to Celebes, where he (again) studied gold deposits.

Due to his reputation as a geologist he could return to South Africa in 1901 to work as a geological consultant. One of his assignments was to describe the newly found Cullinan diamond for the Central Bank of South Africa. Meanwhile the Boer War still had his attention. One of his ideas was to give each soldier a small tin identity card, which later became practice in armies around the world.

In 1906 he became professor at Delft University and this time he got enough resources and students to make his work succesful. In 1910-1911 he led a geological expedition to Timor. His research at Delft was mainly on the material collected during that expedition, and (together with W.A.J.M. van Waterschoot van der Gracht) on the geology of the Netherlands. In 1927 he was a guide of the Shaler Memorial Expedition to South Africa, organized by Harvard University. On the expedition he met Alexander Du Toit, both geologists were among the (at that time rare) supporters of Alfred Wegeners' continental drift theory.

He was a close friend of Dr Ir Willem Frederik Gisolf, geologist and petrographer, from 1925-1938 Director of the Hogere Burger School (HBS) (Dutch secondary education) in Bandoeng in Indonesia (who died in a Japanese concentration camp in Tjimahi in 1944). W.F. Gisolf dedicated his thesis ("Beschrijving van een microscopisch onderzoek van Gabbros en Amfibolieten herkomstig van Midden-Celebes") to Molengraaff. W.F. Gisolf is further well known from his publication in the "Jaarboek van het Mijnwezen in N.O.I." from 1924 with the title "De meteoriet van Tjerebon". His third publication was a scientific analysis of the results of the school where he was the director, entitled "De resultaten van het onderwijs". In this study, he applied scientific methods and a statistical analytical approach to the results of his students. This alllowed for practical feed back to the teachers involved, and constituted one of the first scientific studies in the educational field.

The friendship between Molengraaff and Gisolf was so close that W.F. Gisolf named his youngest son after Molengraaff (Gustaaf Adolf Frederik Gisolf). Subsequently, the name Gustaaf continued in the family (Karel Jan Gustaaf; Gustaaf Jan Frederik van Oosterom).

Molengraaff retired in 1930.

http://en.wikipedia.org/wiki/Gustaaf_Adolf_Frederik_Molengraaff

In het proefschrift staat de volgende zin: "In het bizonder wil ik U, hooggeleerde MOLENGRAAFF, mijn dank uitspreken; Gij waart het, die mij de oogen opende voor de geologie als wetenschap, op Uwe colleges, excursies en tentamina. Hartelijk dank ik U voor de warme belangstelling, die gij in mijn studiën toonde, toen ik Delft reeds geruime tijd verlaten had."

(Karel)