102 DROPS OF WATER. 



power of leaving it when full grown, though they 

 are attached to each other by six cords, or tubes. 

 Besides these numerous minute creatures, the 

 globe often contains many globes like itself, of a 

 small size and green colour. Sometimes as many 

 as eight may be observed. The species V. ylo- 

 bator (Drop II. fig. 8) is the most common, and 

 is found in the spring and summer in shallow 

 pools of clear water : the largest globes measure 

 3^ of an inch, and the smallest about ^ ; Vol- 

 vox aureus has the enclosed globes of a golden 

 colour, and the individuals green ; and V. stel- 

 latus, as the name implies, has the animalcules 

 of an angular shape, and the young globes con- 

 tained in the large one, are stellated also. 



Very little is known of the organization of the 



