LIST OF ILLUSTRATIONS. 



XIX 



Plants continued. 



Diatomacese 



Microscopical forms of vege- 

 table life 

 . Pollen-grains 



Volvox globator . 

 Protozoa : 



Amoaba 



Infusoria 



Leucophrys patula 



Noctiluca miliaris 



Ophrydium versatile 



Polycystina . . 



Kotalia ornata 



98 



94 

 80 



97 



101, 102 

 . 107 

 . 108 

 . 105 

 . 109 

 . 106 

 . 103 

 . 112 



Stent'or Rceselii . . . 106 

 Vorticella cyathina . .108 

 Reptiles : 



Chameleo Africanus . .273 



tongue of 275 



Gecko's toe . . .273 



Iguana defending itself from 



the Jaguar to face 274 



Reptiles continued. 



Serpent, poison teeth of 



Tortoise, internal surface 



carapace of 

 Sea-anemones and lithophytes : 



Actinia alcyonoidea 



Alcyonidium elegans . 



Gorgonia nobilis 



Pennatula grisca 



Urticating organs 

 Sponges : 



Halichondria 



Halina papillaris 

 Worms : 



Foot of an annelide 



Hirudo medicinalis 



Nereis 



Philodina roseola 



Ptygura melicerta 



Sabella unispirata 

 alveolaria 



Serpula contortuplicata 



Terebella conchilega . 



of 



277 

 269 



117 

 120 

 121 

 120 

 118 



121 

 113 



167 



169 

 166 

 173 

 172 

 168 

 168 

 168 

 168 



