[1-4] J.W. TAYLER (Kingswear, Dartmouth). Letters to W. Nevill, Alfred Newton (1868-69) [5-6] W.H. TAYLER (Doctor of Medicine). Letters (1869) [7-16] EDWARD CAVENDISH TAYLOR (1831- ) (clergyman). Letters (1862-84) [17-18] GEORGE TAYLOR (clergyman). Letters (1879) [19] GEORGE CAVENDISH TAYLOR (military writer). Letter (1869) [20-26] JAMES TAYLOR (probably (1823-1913), surgeon on Scottish whalers 1856- 61; botanist, Davis Strait and Baffin Bay). Letters (1860-65) [27] JOHN ELLOR TAYLOR (1837-95) (botanist, geologist). Letter (1886) [28-30] MRS. M.J. TAYLOR. Letters (1866) [31-35] ROBERT TAYLOR. Letters (1871-79) [36-37] FREDERICK TEARLE (1823-87) (clergyman). Letters (1881) [38-85] WILLIAM BERNHARD TEGETMEIER (1816-1912) (naturalist, writer, journalist [The Field]). Letters (1866-79) [86] LIONEL TENNYSON (1854-86) (India Office). Letter (1875) [87-89] SIR WILLIAM TURNER THISELTON-DYER (1843-1928) (botanist, professor, editor). Letters (1874-81) [90] RALPH THOMAS (solicitor?). Letter (1877) [91] S.H. THOMAS (Kaafjord, Norway). Letter (1854) [92-96] JOHN PENNINGTON THOMASSON(1841-1904) (cotton spinner, MP). Letters (1871-77) [97-99] CHARLES LACY THOMPSON (landowner, Milton Hall, Carlisle, JP). Letters (1880) [100] CHARLES THURSTON THOMPSON (1816-68) (engraver, photographer). Letter (1860) [101-128] D'ARCY WENTWORTH THOMPSON (1860-1948) (Biologist; Professor of Biology, University College of Dundee, Professor of Natural History, United College, St. Andrews 1917). Letters (1883-89) [129] JOHN THOMPSON (1810-59) (zoologist). Letter (1859) [130-132] THOMAS THOMPSON (Tyneside Naturalists' Field Club). Letters (1867) [133-135] WILLIAM THOMPSON (1822-79) (naturalist, photographer). Letters (1874-75) [136-138] SIR CHARLES WYVILLE THOMSON (1830-82) (naturalist). Letters (1876-81) [139-142] SIR THOMAS THORNHILL (1837-1900) (1st Baronet, MP). Letters (1881) [143] CHARLES THORP junior (Blanchland). Letter (1852) [144] JOHN M. THORP (Chippenham, Cambs). Letter (1853) [145-146] EVERARD FREDERICK IM THURN (1852-1932) (writer, explorer, botanist, photographer, Governor of Fiji, 1904-10). Letters (1877) [147-151] CHARLES THURNALL (1818-88) (landowner, naturalist). Letters (1852-59) [152-153] FRANCIS WYATT THURNAM (1853- ) (medical officer, writer). Letters (1873) [154] ISAAC TODHUNTER (1820-84) (mathematician). Letter (1877) [155] WILLIAM TOMALIN (solicitor, Northampton). Letter (1881) [156-169] ROBERT FISHER TOMES (1823-1904) (geologist, writer). Letters (1859-72) [170-173] WILLIAM SMITH TOMKINS (c.1830-1914) (clergyman). Letters (1879-80) [174-176] FREDERICK TOMS (1829-1900) (printer, writer on sport). Letters (1881) [177-178] JAMES TRACY (Pembroke). Letters to Alfred and Edward Newton (1850-51) [179-197] RAMSAY HEATLY TRAQUAIR (1840-1912) (Keeper, Natural History Collections, Museum of Science and Art, Edinburgh). Letters (1871-79) [198] KIRBY TRIMMER (1804-87) (clergyman). Letter (1885) [199] A. TRISTRAM (child of H.B. Tristram). Letter (1889) [200-201] ELEANOR MARY TRISTRAM (d.1903) (wife of Henry B. Tristram). Letters to Edward and Alfred Newton (1857-72) [202-259] HENRY BAKER TRISTRAM (1822-1906) (clergyman, naturalist). Letters (1854-92) [260-261] COUTTS TROTTER (1837-87) (clergyman, University administrator).. Letters (1875) [262-268] NATHANIEL TROUGHTON (surgeon, antiquary,topographical draughts- man). Letters (1860-61) [269-276] JULIAN GEORGE TUCK(1851-1933) (clergyman, ornithologist). Letters (1877-89) [277-279] JAMES HACK TUKE (1819-96) (philanthropist, Quaker). Letters (1884) [280-282] HARRIET TURNER (St. Leonards). Letters to and from Alfred Newton (1885) [283-288] SIR WILLIAM TURNER (1832-1916) (Professor of Anatomy, Edinburgh, 1867- ). Letters (1867-79) [313-494] 9TH MARQUESS OF TWEEDDALE (ARTHUR HAY) (1824-78) (styled Viscount Walden until 1876). Letters (1864-77) [289] EDWARD TURNER BOYD TWISLETON (1809-74) (civil servant). Letter (1871) [290-295] SIR EDWARD BURNETT TYLOR (1832-1917) (anthropologist). Letters (1883-89) [296-297] JOHN TYNDALL (1820-93) (natural philosopher). Letters (1865) [298-312] CHARLES FRANCIS TYRWHITT-DRAKE (1846-74) (naturalist, explorer, writer). Letters (1867-74)