Lucium was confimed to be an impure sample of yttrium by an English chemist who became the president of what?
Lucium Lucium was the proposed name for an alleged new element found by chemist Prosper Barrière in 1896 in the mineral monazite. Later, William Crookes confirmed that the new element was actually an impure sample of yttrium.
Davies Gilbert Davies Gilbert {'1': ", '2': ", '3': ", '4': "} (born Davies Giddy, 6 March 1767 – 24 December 1839) was a Cornish engineer, author, and politician. He was elected to the Royal Society on 17 November 1791 and served as President of the Royal Society from 1827 to 1830. He changed his name to Gilbert in 1817.