Priestley's apparatus used for carbonating water, 1772.
4 0 c m
actual image size: 19cm x 32cm

Priestley's apparatus used for carbonating water, 1772.

© Science Museum / Science & Society Picture Library


Engraving taken from 'Directions for impregnating water with fixed air...' by English clergyman and chemist Joseph Priestley (1733-1804). Published in London in 1772, Priestley discovered various gaseous elements and compounds, and in an experiment in 1774 obtained a gas which he named 'dephlogisticated air'. This was in fact oxygen, although it was not named thus until the French chemist Lavoisier (1743-1794) repeated Priestley's experiment. Priestley had originally trained as a Church minister, but his radical theological and political views made him a controversial preacher. He strongly supported the French Revolution, and after his house in Birmingham was attacked and burnt by a mob in 1791, he left Britain for America.

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