INDEX. Abinger, Roman villa at, 178 castings from Roman villa, with rounded particles, 253 Acids of humus, action on rocks, 240 Africa, dust from, 235 Air, currents of, worms sensitive to, 28 Amount of earth brought to the surface by worms, 129 Ants, intelligence of, 93 Archiac, D', criticisms on my views, 4 Artemisia, leaves of, not eaten by worms, 33 Ash-tree, petioles of, 79 Beaulieu Abbey, burial of the old pavement, 193 255 Beaumont, Élie de, on vegetable mould, 2 178 the rubbish underlying great cities, the transport of dust, 237 the permanence of mould, 289 the permanence of ancient tumuli, 290 Beech-forests, stones not buried under by castings, 144 Bones, crushed, burial of, under castings, 146 -, castings from, with rounded particles, 254 Bridgman, Mr., on worms eating leaves of a Phlox, 33 Burrows, depth of, 109 direction of, on a slope, 270 excavation of, 98 lined with black earth, 111 lined with leaves, 112 mouths of, worms lie motionless near, 15 old, their collapse, 118 plugged up, 58 terminating in a small chamber, often lined with stones or seeds, 114 Calciferous glands, 17, 43 Cannibal worms, 36 Carnagie, Mr., depth of burrows, 114 Castings, acid, 52 from Beaulieu, 101 tower-like, near Nice, 106 ejection of, 116 tower-like, from near Calcutta, 123 of great size on the Nilgiri Mountains, 126 thickness of layer formed from, during a year, 169 flowing down slopes, 261 washed away, 272 dry, disintegration of, 275 blown to leeward, 283 Cells, free, with calcareous matter in the calciferous glands, 47 Cellulose, digestion of, 37 Chalk-formation, surface of, much denuded, 137 formation of mould over, 297 Chedworth, Roman villa of, 197 Circular trenches near Stonehenge, 287 102, 105 on the calciferous glands, 44 the pharynx adapted for suction, 56 doubts whether earth serves worms as food, on the gizzards of worms, 246 Clematis, petioles of, used in plugging up burrows, 58, Cobra-snake, intelligence of, 94 Collapsing of old burrows, 118 Concluding remarks, 305 Concretions of lime in the anterior calciferous glands, 45 Corals, mud derived from, 256 Corniche Road, disintegrated castings on, 276, 281 Croll, Mr., on denudation, 233 Crowns or ridges on old ploughed fields, 292 Currents of air, worms sensitive to, 28 Dancer, Mr., on the action and number of worms, 146, 159 Deafness of worms, 26 Débris, over the Roman remains at Silchester, 201 Decay of leaves not hastened by the secretion with which Digestion of worms, 37 extra-stomachal, 43 Disintegration of rocks, aided by worms, 240 Down, amount of earth here brought annually to the Downs near Winchester, valleys in, 301 Dust, distance transported, 235-237 Earth, amount of, brought to the surface by worms, amount of, which flows down a given slope, 266 weight of, ejected from a single burrow, 160 Eisen, number of species of worms, 9 depth of burrows, 110 Ejection of castings, 116 Embankments on hill-sides, 278, 282 Encampmeuts, ancient, 290 Ernst, Dr., on worms at Caracas, 121 Excavation of the burrows, 98 Fabre, M., on the instincts of Sphex, 93 Farrer, Mr. T. H., on the Roman villa at Abinger, Fat eaten by worms, 36 Fields formerly ploughed, 292 Fish, Mr., criticisms on my views, 6 Flints, standing vertically in the residue over the chalk, acted on externally and internally by atmospheric Flowing down of castings, 261 Fluid, digestive, of worms, 37 Food of worms, leaves, 35 earth, 100 Foster, Michael, on the pancreatic ferment, 37 intestines, 52 on the acidity of the contents of the Foundations, deep, of the Roman buildings at Wroxeter, Furrows on old ploughed fields, 292 Galton, Mr., on the number of dead worms, 14 Geikie, Archibald, on Denudation, 233 Denudation, 289 controverts É. de Beaumont's views on James, controverts Richthofen's views, 237 Geographical distribution of worms, 120 Gizzards of worms, 246 Glands, calciferous, 17, 43 function of, 49 Glen Roy, evidence of rarity of debacles, 260 Haast, Von, on aboriginal instruments in New Zealand found buried, 147 Hearing, sense of, 26 Heat, perception of, 25 Heaths, inhabited by few worms, except where paths cross them, 10 Hensen on the number of worms in gardens, 5 on worms not subsisting on earth, 108 depth of burrows, 110 on number of worms living in a given area, 158 on the amount of humus formed by two worms, 310 |