Autograph Letter Signed, to A.S.Knight, referring him to an 1889 article on Ipomoea Purpurea (Morning Glory), and other relevant sources of information on the plant. 3 pp., with signature overleaf, 7 x 4 inches, occasional light foxing only. Royal Gardens Kew, 13 July 1898. Uncommon. Isaac Henry Burkill (1870 – 1965), English botanist. In 1897 he joined the Royal Botanic Gardens, Kew as a Herbarium assistant and became a principal assistant in 1899. He worked in India and in the Straits Settlements (Singapore). He worked primarily in economic botany but published extensively on plant biology, ethno-botany, insect-plant interactions and described several species. He published a two volume compilation on the plants of economic importance in the Malay Peninsula, collating local names and knowledge. He also wrote a detailed history of botany in India. The plant genera Burkillia and Burkillianthus were named in his honour.