CALVERT, FREDERICK CRACE Eng lish chemist, was born in London on Nov. 14, 1819. From about 1836 till 1846 he lived in France. On his return to England he settled in Manchester as a consulting chemist, and was appointed professor of chemistry at the Royal Institution in that city. He gave much attention to the manufacture of coal-tar products, and particularly carbolic acid, for the production of which he estab lished large works at Manchester in 1865. He died in Manchester on Oct. 24, 1873.