BIOLOGY FOR YOUNG BEGINNERS. 



35 * 



ored bodies, about a half-inch long, hanging down from the weed. 

 If you shake or touch them the least bit, they get sulky and shrink 



Ilydra hanging from the weed. 



Duck-weed. 



Hydra shrunken against the weed. 

 Fig. 33. 



all up against the stem, looking like little pouting lumps of jelly. 

 Place your bits of weed in a glass of water, and set the glass in the 



Feeler*. 



Fig. 34. Hydra fishing for Food with its Feelers or Tentacles. 



light, but not in the sun, and in a few hours you will find a good 

 many of these little creatures clinging to the side of the glass toward 



