Daguerre, Louis Jacques Mande. Born in 1789. The inventor of photography by the daguerreotype process, by which the portrait was fixed on a plate of copper thinly coated with silver, by the successive action of the vapors of iodine, bromine, and mercury; in which invention he was associated with M. Niepce Daguerre. He was also celebrated as a dioramic painter; was named by the French government as an officer of the Legion of Honor, and granted a pension of 6,000 francs. Died 1851.

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