FOX, ROBERT WERE (1789-1877), English geologist, was born at Falmouth on April 26, 1789. He made researches on the internal temperature of the earth, being the first to prove that the heat increased definitely with the depth; his observations being conducted in Cornish mines from 1815 for a period of forty years. In 1829 he commenced a series of experiments on the artificial production of miniature metalliferous veins by means of the long-continued influence of electric currents, and his main results were published in Observations on Mineral Veins (Rep. Royal Cornwall Polytech. Soc., 1836). He constructed in 1834 an improved form of deflector dipping needle. In 1848 he was elected F.R.S. He died on July 25, 1877. (See A Catalogue of the Works of Robert Were Fox, F.R.S., with a Sketch of his Life, by J. H. Collins, 1878.) His daughter, CAROLINE Fox born at Falmouth on May 24, 1819, wrote a diary recording memories of many dis tinguished people, including John Stuart Mill, John Sterling and Carlyle. Selections from her diary and correspondence (1835-71) were published under the title of Memories of Old Friends (ed. by H. N. Pym, 1881; 2nd ed., 1882) . She died on Jan. 12, 1871.