SIR HUMPHRY DAVY - AUTOGRAPH SENTIMENT SIGNED - HFSID 154715
Sale Price $270.00
Discovered laughing gas and invented the miner's safety lamp.
Autograph Sentiment signed: "Your Affectionate Brother", 3¾x1½ slip. Ink caption (unknown hand) below signature: "Sir Humphry Davy." English chemist Sir Humphry Davy (1778-1829) pioneered the study of electrochemistry. In 1799, he discovered the exhilarating effect of nitrous oxide (laughing gas) when inhaled. Electrolytic methods yielded him the elements sodium, potassium and calcium (1807-1808). He also recognized the element nature of chlorine and gave it its name (1810). He invented the miner's safety lamp, called the Davy Lamp in 1815. Slightly soiled. Mounting adhesive on verso shows through lightly at corners. Light vertical fold crosses "v" of signature. Otherwise, fine condition.
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