Page:The Formation of Vegetable Mould through the Action of Worms (1881).djvu/339

Rh *Taste, power of, 32
 * Thickness of the layer of mould annually ejected by worms, 169
 * of the mould over the remains at Chedworth, 199
 * of the mould over the remains at Silchester, 218
 * of the mould over the Roman remains at Wroxeter, 223
 * Thyme, leaves of, not eaten by worms, 33
 * Touch, worms highly sensitive to, 28
 * Triangles of paper, 82
 * Trituration of particles of rock in the gizzards of worms, 249
 * Tumuli, ancient, 290
 * Tylor, Mr. A., on Denudation, 233
 * Tylor, Mr. E., on anciently ploughed land, 293
 * Typhosolis, 19


 * Utricularia, bladders of, 109


 * Vibrations, worms sensitive to, 27
 * Vision, power of, in worms, 20


 * Walls, ancient, at Abinger, penetrated by worms, 188
 * penetrated by worms at Silchester, 209
 * Washing away of castings, 272
 * Wedgwood, Mr., on the formation of mould, 3
 * Weight of earth ejected from a single burrow, 160
 * Whitaker, Mr., on Denudation, 232
 * White, on worms leaving their burrows at night, 14
 * Winchester, chalk formation near, 301
 * Wind, action of, on castings, 283
 * Worms, nocturnal, 13
 * large numbers occasionally die, 14
 * dead eaten by other worms, 36