LIST OF ILLUSTKATIONS. 



PAGE 



Plate II. — Fig. 1. Boderia Tumeri', a, ovuin, . . . 153 

 2. Large specimen of B. Tumeri, with two 

 groups of ova. Probably consisting of two 

 animals in conjugation, . . . 154 



,, 3. B. Tumeri, having ruptured its test and 

 spread itself into a ragged mass previous 

 to depositing the naviculoid bodies, . 157 



,, 4. Group of naviculoid bodies, . . . 157 



,, 5 and 6. Naviculoid body previous to and after 



the discharge of the amoeba, . . 157 



,, 7. Amoeboid germ of B. Tumeri, . . 157 



Woodcut —Diagram, showing the relations of Land and Water on 



the Surface of the Earth, . . . .151 



