CONTENTS 



OF 



THE SECOND VOLUME. 



PART III. 

 ANIMAL ORGANISMS. 



SECT. I'AGE 



I. FUNCTIONS OF THE ANIMAL FRAME 1 



II. PROTOZOA ......... 13 



III. HYDROZOA ZOOPHYTES ....... 81 



IV. ANTHOZOA ZOOPHYTES ....... 119 



V. ANNT7LOSA, OR WORMS . . . . . . 144 



VI. ECHINODERMATA ........ 169 



VII. THE CRUSTACEA . . ...... 188 



VIII. CIRRIPEDIA ......... 213 



IX. BRYOZOA, OR POLYZOA ....... 218 



X. TTJNTCATA, OR ASCIDTANS ...... 222 



XI. MOLLUSCA .... ..... 229 



INDEX ..... 253 



