LIST OF ENGRAVINGS. XXV 



VOLUME II. 



Fig. Page 



239 Cyclosis, or partial circulation in the cells of the Caulinia 



fragilis, magnified, (Amici) . . . .42 



240 The same in the jointed hair of the Tradcscantia virginica, 



(Slack) ....... 42 



241 Section of the Hydra vividis, magnified, (Trembley) . 58 



242 Hydra vividis seizing a worm, (id.) . . . .59 



243 The same after swallowing- a minnow, (id.) . .59 



244 A Hydra which has swallowed another of its own species, (id.) 59 



245 Compound Hydra, with seven heads, (id.) . . 59 



246 Veretilla lutea, showing the communicating vessels of the Po- 



lypes, (Quoy et Gaimard) .... 64 



247 Nutrient vessels of the TcBiiia solium (Chiaje) . . 64 



248 T(Enia globosa, or Hydatid of the Hog, (Goeze) . 64 



249 Horizontal section of the Rhizostoma Cuvieri, Peron, (Ey- 



senhardt) . . . . . . 67 



250 Geronia HexaphyUa,I*cron, Medusa proboscidalis, (Forskal) 67 



251 Vascular net-work in margin of the disk of the Rhizostoma 



Cuvieri, (Eysenhardt) .... 67 



252 Vertical section of the Rhizostoma Cuvieri, (id.) . . 68 



253 Transverse section of one of the arms of the same, (id.) . 68 



254 Transverse section of the extremity of a tentaculum of the 



same, (id.) ...... 68 



255 Leucophra patula, highly magnified, (Ehrenberg) . . 73 



256 Alimentary canal and cffica of the same, viewed separately, 



(id-) 73 



257 Vertical section of the Acrmzrt conrtcea, (Spix) . . 75 



258 Digestive organs of the Ai-^enas, (Tiedemann) . . 76 



259 Siomsichs oHhe Na is vermicular is, (RcBsel) . . 77 



260 Stomachs of the //«Vw(/o ?nefZicmaZi5, (original) . . 78 



261 Mouth of the same, showing the three semicircular teeth, 



(original) ••-... 78 



262 Tooth of the same, detached, (original) ... 78 



263 Glassopora tuberculata; Hirudo complanata, Lin. (Johnson) 78 



264 The same seen from the under side, showing the digestive 



organs, (id.) 79 



265 Diagram showing the arrangement and connexions of the or- 



gans of the vital functions in Vertebrata, (original) . 81 

 Vol. I. D 



