ANTHOZOA HYDROIDA. rol 
and be troubled, though the mountains shake with the swell- 
ing thereof.” “Troubled on every side, yet not distressed ; 
perplexed, but not in despair; persecuted, but not forsaken ; 
cast down, but not destroyed.” 
Some of those zoophytes which, when matured, success- 
fully combat the waves, cling to the rock when they are 
young and tender, creeping along its surface. He who 
made them teaches them thus instinctively to consult their 
safety. And He who cares for the infant zoophytes, much 
more cares for the lambs of his flock, gathering them with 
his arm, and carrying them in his bosom. Oh! let them 
cleave to him in the season of youth, and then, being rooted 
and grounded and stablished in the faith, should days of 
darkness and of danger come, he will either hide them in the 
hollow of his hand, or should he call them to the hottest of 
the fight in the high places of the field, he will fit them for 
the conflict, and make them even more than conquerors. 
Some of the hydroid zoophytes are unclothed, but most 
of them have their bodies invested in a horny sheath, which 
is called the polypidom, z.¢. the house of the polypes. They 
differ much in form, but there is great beauty in all the 
varieties of their: structure as well as of the sculpture of 
cells and vesicles. They are generally branched and jointed, 
G 
