Autograph Letter Signed, to Clement le Neve Foster, enquiring “whether you have had the opportunity of doing anything in Underground Temperature.” A good one page example, 7 x 4½ inches. Belfast, 28 July 1874. Joseph David Everett (1831–1904), English physicist, professor of natural philosophy at Queen’s College, Belfast. He wrote Outlines of Natural Philosophy (1887) and other works. Sir Clement le Neve Foster (1841 – 1904), English geologist and mineralogist.