322 INDEX. 



Morren on worms eating sugar, 36 



on the disappearance of the calciferous glands 



during winter, 48 



on stones in the gizzards of worms, 247, 249 



Mould, thickness of, annually ejected by worms, 169 

 thickness of, over Roman remains at Ched worth, 



199 

 nature and thickness of, over the Eoman remains 



at Silchester, 218 



thickness of, at Wroxeter, 223 



formation and thickness of, over the chalk, 297 



Mountains, worms absent from, 12 



Miiller, Fritz, on the worms in South Brazil, 121 



Nice, castings near, 106 



disintegrated castings near, 276 



Night, worms leave their burrows, 14 

 Nilgiri Mountains, castings on, 126 



Objects strewed on the surface soon buried under cast- 

 ings, 130 

 Obliteration of old furrows on ploughed land, 292 

 Odours, degree of sensitiveness to, by worms, 29 



Pancreatic secretion, 37 



not acid, 53 



Paper, triangles of, 82 



Path, paved, burial of, by worm-castings, 145 



Paths inhabited by worms, 10 



Pavement, modern, undermined by worms, 192 



Pavements, ancient, subsidence of, at Silchester, 212 



Peat, formati'jn of, 239 



Percolation of earth into the chalk, 297 



