Part 35

‘Surra’ disease caused by T. evansii, 168

Sutherland, 77

Sylph, Invention of the word, 108

Tacitus on British pearls, 5

Tapes decussatus, 7

Tartaric acid, Observations on the optical properties of, 105

Tegetmeier, 77 Breeding experiments with pigeons, 89

Telegony, 75 Explanations of, by Herbert Spencer, 80 by infection hypothesis, 78 by M. Charrin, 79 by the pangenesis of Darwin, 80 by the Penycuik experiments, 79 by Professor Hubrecht, 79 by reversion hypothesis, 80, 83, 84 by Romanes, 79 by saturation hypothesis, 78 Opponents of Kühn, 81 Nathusius, 81 Settegast, 81 Sir Everett Millais, 81 Weismann, 81 Supporters of: Agassiz, 77 Captain Hayes, 77 Herbert Spencer, 77 Romanes, 77 Sir Everard Home, 77 Sutherland, 77 Tegetmeier, 77 Weismann’s inheritance of acquired characters in, 83

Terzi, Signor, Experiment against the bites of the mosquito, 151

Tetrarhynchus unionifactor, 13

Texas fever, Cause of, 149 Germ of, 115

Theobald, 147

Thompson, D’Arcy, 67

Thomson, Wyville, 20

Thurn, Sir Everard im, 9

Ticks convey piroplasma, 171

Tinnevelly pearl banks, 4

Tournon, Lycée of, 104

Trypanosoma brucei causes the ‘nagana’ disease, 168 equinum causes the ‘mal de caderas’ disease, 168 equiperdum causes the ‘dourine’ disease, 168 evansii causes the ‘surra’ disease, 168 gambiense causes sleeping-sickness, 170, 177 theileri causes ‘gall-sickness,’ 168

Tsetse fly, 97. See also under Glossina and Flies

Tundra, 86

Tyndall, 112

Tyrol, Arsenic-eaters of the, 124

Uganda, Sleeping-sickness in, 169

Unio, 2, 4

Universities, New, in England, 183

Valentinus, Basilius, Explanation of fermentation, 108

Vallery-Radot, M., ‘Life of Pasteur,’ 126, 127