Clifford Richardson, American chemist

Clifford Richardson, American chemist

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Credit: Williams Haynes Portrait Collection, Chemists’ Club Archives,CHEMICAL HERITAGE FOUNDATION/SCIENCE PHOTO LIBRARY

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Caption: Clifford Richardson (1856-1932), American chemist. Richardson was a chemical engineer with the US Department of Agriculture between 1878-1887. During this time he studied the chemical composition of plants. In 1887 he became the Inspector of Asphalt and Cements for District of Columbia, USA, where he developed two forms of asphalt; asphaltic concrete and hot-rolled asphalt. He was renowned as an international authority on asphalt pavements.

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Keywords: adult, american, asphalt pavements, asphaltic concrete, black-and-white, chemical engineer, chemist, chemistry, hot-rolled asphalt, human, inspector of asphalt and cements, looking at camera, male, man, monochrome, one person, people, portrait, scientist, seated, us department of agriculture

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