He was a former faculty member of Pennsylvania State University's engineering department which designed a large portion of the Pennsylvania Turnpike.
Subsequently, several routes were opened including the south-southeast arête conquered by Lucien Devies and Giusto Gervasutti in 1935, and that of the north face defeated by Albert Tobey and Louis Berger in 1948.
The dark purple and insoluble dipotassium salt K2C6H2O6 was prepared by Preisler and Berger in 1942, by oxidizing inositol with nitric acid and reacting the result with potassium carbonate in the presence of oxygen.
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The Louis Berger Group is an American architectural and engineering design firm based in Morristown, New Jersey.