Autograph Letter Signed ‘T.H.Huxley’, to Sir Henry Thompson, grieved to hear of Sir Henry’s accident, and reporting diptheria in his own household. 2 pp. 7 x 4 inches, in good condition. 4 Marlborough Place, 22 May 1878. Thomas Henry Huxley (1825-95), the celebrated English biologist, known as Darwin’s Bulldog for his advocacy of Charles Darwin’s theory of evolution. In July 1854 he became Professor of Natural History at the Royal School of Mines and naturalist to the Geological Survey in the following year. “A day or two ago I feared I might have to excuse myself from your projected party. Diptheria has invaded my house & my eldest daughter has been so ill as to make us terribly anxious. I am happy to say she is mending now.” Huxley’s correspondent, Sir Henry Thompson, Bart., Professor of Surgery at University College, London, was known for his dinner parties at his house 35 Wimpole Street, called “Octaves”, at which eight courses, accompanied by eight wines, were served at eight o’clock to eight guests in addition to the host and the guest of honour.