Tag: Henry Potonie

This Day, That Year – November 16

Extracts from Letters to Henslow, a collection of letters written by Charles Darwin during his voyage on the Beagle, were published on this day in 1835. Did you know that: • Life preservers made of cork were patented by Napoleon Guerin on this day in 1841• Henry Potonie, a German geologist who studied coal formation, […]

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