DESCRIPTION OF PLATE II. 117 



IG. 8. The Monas vivipara; an individual dividing into two; p. 37. 



FIG. 9. The Revolving Monads, (Volvox ylobator)] representing the 

 young escaping from the parent globe; p. 39. 



FIG. 10. The Globe Volvox, (V. globator); five young globular clusters 

 are contained within the outer or parent globe; p. 40. 



FIG. 11. A single Monad of the Globe Volvox, very highly magnified; 

 shewing the red eye-speck, the horns, the six connecting 

 lateral filaments, and the globular sacs ; p. 39. 



FIG. 12. Part of the globe of a Volvox, magnified 500 linear; shewing 

 in the centre several groups of the Monads produced by 

 self -division ; p. 39. 



FIG. 13. The Blue Stentor, (Stentor cceruleus)-, p. 44. 



a. The lateral crest, only partially seen in this position. 



FIG. 14. A group of the Multi-shaped Stentor, (Stentor polymorphus); 

 p. 43. 



FIG. 15 Shews a Stentor polymorphus in a form it often assumes when 

 floating through the water. 



FIG. 16. A twig, covered with thousands of the Stentor polymorphus, 

 which appear to the naked eye like an incrustation of 

 green jelly; from the lake in the garden of Dulwich Col- 

 lege. This twig was from a branch three feet long, that had 

 fallen into the water, and was literally covered with innu- 

 merable aggregations of these Infusoria; p. 44. 



