Nature 110, 267-267 (19 August 1922) | doi:10.1038/110267b0

Calendar of Industrial Pioneers

E. C. S.

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August 20, 1769. Gabriel Jars died.—A native of Lyons and born in 1732, Jars acquired a practical knowledge of mining under his father, and after studying at the École des ponts et chaussées, made a long tour of inspection of the mines of England, Scotland, Sweden, Holland, Austria, and other countries, the results of his observations appearing in his “Voyages metallurgiques” published after his death.