Chemical element with symbol H and atomic number 1

James Sadler setting off on the proposed first crossing of the Irish Sea from Dublin by  balloon, 1812; with details of the hydrogen barrels and equipment. Engraving.

Ballooning: hydrogen barrels and other equipment used in ballooning. Engraving by W. Lowry, 1803.

Hydrogen : the essential element / John S. Rigden.

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Hydrogen

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Hydrogen : the essential element / John S. Rigden.

Ballooning: hydrogen barrels and other equipment used in ballooning. Engraving by W. Lowry, 1803.

James Sadler setting off on the proposed first crossing of the Irish Sea from Dublin by balloon, 1812; with details of the hydrogen barrels and equipment. Engraving.