HYDRO IDS. 



17 



HYDEOIDS. 



By Mrs. S. B. HEERICK, 



s 



OME of the most exquisite forms of organic Nature are to be 

 found in that shadowy border-land which unites rather than 

 divides the animal and vegetable worlds. It is hard to believe, even 

 when looking with careful scrutiny at certain forms of animal life, at 



Fig. 1. Plumularia paxcata. (Natural Size.) 



the corals, for instance, the sponges, and the hydroids, that an exist- 

 ence which so closely resembles vegetation should be essentially ani- 



VOL. VIII. 2 



