CHURCH, SIR ARTHUR HERBERT Brit ish chemist, was born on June 2, 1834, in London. He was edu cated at the Royal College of Chemistry in London and at Oxford. In 1863 he was appointed professor of chemistry at the Royal Agricultural college, Cirencester, and during this period Church studied chemical problems connected with agriculture. He was a man of wide and varied tastes, and applied chemistry to the sub jects in which he was interested, such as mineralogy (he discovered a new mineral, Churchite), archaeology and chiefly painting. In 1879 Church was appointed professor of chemistry at the Royal Academy of Arts; he retired from this post in 1915. During this period he worked on the chemistry of painting and his book, The Chemistry of Paints and Painting (189o) , has run into many edi tions and has been translated into German.
He was an authority on precious stones and porcelain ; he left instructions to his wife that various collections of curios and antiques were to go to the Ashmolean Museum at Oxford and his cut precious stones to the British Museum. He died in London on May 31, 1915.