THE LA SSO THRO WERS. 
59 
swimming gaily along in the water by driving in and 
out the jelly-veil (v, 3) spread across their rim. 
Anything to exceed the delicacy and beauty of 
these tiny jelly globes can scarcely be imagined, and 
" The Campanulina. Hincks. 
1. Natural size of the animal tree, s, Natural size of the sac con- 
taining the jelly -bell. 3'. Natural size of free jelly-bell floating in the 
water. 
2. A piece of the fixed animal-tree magnified. a a, Animal 
feeding, s, Sac with the jelly-bell upside down inside it. 
3. Free jelly-bell magnified, v, The veil across the bell, t, Feed- 
ing tube of the animal, m, The mouth, o, The ovary in the canals of 
the bell, b b, Coloured spots in the rim. 
as they are easily bred in a salt-water aquarium, all 
their life-history may be carefully studied. Minute 
as they are, the pulsation of the bell as they propel 
