Adolf Lehmann

Adolf Lehmann or Adolph Ludwig Ferdinand Lehmann[1] (12 December 1863 - 27 September 1937) was a Canadian chemist and agricultural scientist of German origin. He served as the first agricultural chemist of Mysore state in India. He established a laboratory for chemical analysis and began field experiments to study plant nutrition and also worked on chemical problems involved in the processing of sugar from sugarcane.

c. 1900

Life and work
Parents, Kathinka and Adalbert Lehmann, c. 1863

Lehmann was born in Orillia, Ontario, the first son of Adalbert Ludwig Lehmann and Kathinka Helene Friedereike (born Bruch, she came from Oldenburg and had been in Belgium with an uncle who was physician to King Leopold while studying French and English[2]) a family of German settlers who farmed around Sparrow Lake.[3][4] Adolph graduated in 1889 from the Ontario Agricultural College (then called the Guelph Agricultural College) and then went to the University of Leipzig where he studied under Johannes Wislicenus and received a doctorate for studies on the reduction of dibenzene diphenylbutadiene to tetraphenylbenzene. He subsequently worked at the Dominion Experimental Farm, Ottawa as an assistant chemist to Frank Thomas Shutt[5] and as a chemist in New Orleans. He also gave lectures on fungi and other aspects of microscopic life for members of the Ottawa Field Naturalists' Club.[6]

India

In 1898 he moved to India to set up the department of agriculture in Mysore State. Lehmann's appointment was based on the recommendations of the Voelcker commission to the government of India.[7] Among his achievements were the establishment of rigorous experimental techniques based on pot cultures, field plots, and developing chemical assays for phosphorus in plant and animal matter (including studies on the nutritive value of "famine foods"). He studied soil fertility, and conducted research on improving the process of converting sugarcane juice to sugar (reducing losses by neutralizing with lime before boiling[8]), treating water for drinking, and in paper making.[9] In 1908, as his appointment term ended,[10] shortly after the death of his wife,[11] the Government of Mysore decided not to renew the position of Agricultural Chemist. He also worked with coffee planters in attempts to improve the quality and yield of coffee.[12] The Planters' Association resolved in a meeting "That this Association deplores the retrograde policy of the Mysore Government with regard to agriculture by which the services of Dr Lehmann are lost to the Province. It desires to place on record its high appreciation of the valuable services rendered to the planting industry by Dr. Lehmann."[13] Lehmann was quoted by the planters as saying - "what you need is experiment, and experiment, and experiment."[14] Lehmann had worked for nine years before he returned to Canada, to work initially at Queen's University, and then at the University of Alberta as a professor. He was succeeded in 1908 in the state of Mysore by Leslie Coleman who had been recruited as a mycologist. In Canada he studied bitumen deposits in the Athabasca river, studied soil chemistry and influenced numerous students. He was invalid for the last eight years of his life and died at Kingston, Ontario.[15][16]

Lehmann was married to Georgina Mary Agnes (born Lovick) (May 11, 1870 - c. 1907) and they had four children.

  • Lehmann's office and laboratory, currently housing the department of agriculture in Bangalore
  • Floor plan of the agricultural laboratory and office
  • Design of the wetland experimental plots at Hebbal

References
  1. University of Toronto. Register of Graduates, &c., for 1890. 1890. p. 10.
  2. Soper, Ursula (2017). Kathinka's Story; A Pioneer Family's Life at Sparrow Lake. Sparrow Lake Historical Society.
  3. "Chance meeting leads local historian to story of colourful local pioneer". Orillia Matters. 2018-03-28.
  4. "Adelbert Lehmann". Sparrow Lake Historical Society. Retrieved 2020-07-24.
  5. Anstey, T.H. (1986). "One hundred harvests. Research Branch Agriculture Canada 1886-1986. Historical Series No. 27". Agriculture Canada: 24. Cite journal requires |journal= (help)
  6. "Annual Report of the Council for 1891-1892". The Ottawa Naturalist. 6: 23. 1893.
  7. Anon. (1939). Report on the Progress of Agriculture in Mysore. Bangalore: Government Press. pp. 27-33.
  8. Lehmann, A. (1907). Improvement of the sugar industry of Mysore. The Agricultural Journal of India. 2. pp. 54-63.
  9. Lehmann, Adolf (1907). "Memorandum on the use of, and trade in, commercial fertilizers in southern India". Proceedings of the Board of Agriculture in India held at Cawnpore. Government of India: 57-70.
  10. [Bangalore]. The Pioneer, 26 February 1908, p. 3.
  11. "Scientific Officer". The Planter's Chronicle. 3 (6): 179-180. 1908.
  12. The United Planters' Association of Southern India. Seventeenth annual general meeting. 1-5 August 1910. 1910. pp. 57–58.
  13. "Quarterly General Meeting held at Balehonnur on the 3rd August 1908". The Planters' Chronicle. 3 (8): 188. 1908.
  14. The United Planters' Association of Southern India. Eighteenth annual general meeting. 28 Aug - 1 Sep. 1911. 1911. p. 29.
  15. "Dr. Adolf Lehmann". Nature. 140 (3553): 960. 1937. doi:10.1038/140960a0.
  16. "The Alumni in Alberta". O.A.C. Review. 36 (10): 328-329. 1924.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.