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 collapse, 118 



— plugged up, 58 



terminating in a small chamber, often lined w^^h 



stones or seeds, 114 



Calciferous glands, 17, 43 

 Cannibal worms, 36 

 Carnagie, Mr., depth of burrows, 114 

 Ca-tings, 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 



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 calciferous 



glands, 47 

 Cellulose, digestion of, 37 



