SIR HUMPHREY DAVY’S OBSERVATION ON GEO-THERMAL AND EARTH CORE STUDIES
DAVY, SIR HUMPHRY. (1778-1829) 1st Bart, English chemist and inventor best known for his discoveries of several alkali and alkaline earth metals. Lengthy Autograph Letter Signed “H. Davy”, with good scientific content. Four very full pages, quarto. Hotel de la Paix, Paris, May 20, 1820.