316 INDEX. 



Bridgman, Mr., on worms eating leaves of a Phlox, 33 

 Buckman, on grasses profiting by being rolled, 10 

 Burial of the remains of ancient buildings by worms, 



176 

 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 collapsej 118 



— plugged up, 58 



terminating in a small chamber, often lined wi^h 



stones or seeds, 114 



Calciferous glands, 17, 43 

 Cannibal worms, 36 

 Carnagie, Mr., depth of burrows, 114 

 Castings, acid, 62 



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 



weight of, from a single burrow and from a given 



area, 160 



thickness of layer formed from, during a year, 169 



ejected over ancient buildings, 253 



flowing down slopes, 261 



washed away, 272 



dry, disintegration of, 275 



blown to leeward, 283 



Cells, free, with calcareous matter in the calciforous 



glands, 47 

 Cellulose, digestion of, 37 



