THE BEE. 137 



tween the various stages of development through 

 which it passes and those existing in the whole class. 



So striking is this comparative progress in the organ- 

 ization of classes and individuals^ that the lowest crea- 

 tures in any particular section strongly resemble, 

 when in their perfect form, the early or embryonic 

 stage of the higher animals in the same section, the 

 latter undergoing various changes of form and struc- 

 ture before they assume their characteristic type." 



Thus, to illustrate this proposition, the vermiform, 

 or worm-shaped creatures, which rank lowest in the 

 articulate races, resemble, in their perfectly developed 

 state, the insects (which are the highest of the articulate 

 tribes) in their larval or imperfect stage of growth. 



Any one who has been at aU impressed with the 

 unity exhibited in aU the natural operations of the 

 Creator, and the intimate connexion existing between 

 matter and mind, will of course expect to find the 

 same phenomena in the psychical or mental as in the 

 physical history of animated nature ; and a considera- 

 tion of the following brief sketch of the mental deve- 

 lopment of the various races of animals will serve to 

 show that the parallel does exist, and may readily be 

 traced. 



Quitting, then, those doubtful forms of which it is 

 difficult to detect the true nature, we soon arrive at 

 a group of creatures possessing an imdoubted animal 

 existence. In these, the inner mainsprings of action 

 are linked with the outer world by a chain of sensa- 

 tions, and the exciting cause of their movements 



