202 



ELEMENTS OF SCIENCE 



FIG. 33. 



all, while active locomotion is the common characteristic 



of the animal kingdom. 



It is absolutely impossible in this work to give even 



the merest outline of all 

 the principal groups of 

 plants and animals. For 

 further information the 

 reader is referred to works 

 devoted to botany and zoo- 

 logy. We must content 

 ourselves with selecting a 

 flowerless and a flowering 

 plant as examples of vege- 

 table life, adding thereto 

 a brief notice of a few 

 leading types from the 

 animal kingdom. 



Passing by, therefore, 

 the lichens, liverworts, 

 mosses, lycopods, and 

 horsetails, and leaving 

 the student to seek a 

 knowledge of them else- 

 where, we will briefly con- 

 sider the common bracken 

 fern, called by botanists 

 Pteris aquilina Pteris 

 being the name of the 

 genus to which it belongs, 



and aquilina indicating 

 Showing flower above and the fly- whi(jh species ft j s o f that 

 catching leaves round its base. 



genus. 



It is an organism of considerable size made up of a 

 multitude of cells variously transformed to constitute 



VENUS'S FLY-TRAP (Dionaa 

 muscipula). 



