SYSTEMATIC ARRANGEMENT. 29 
calculation, and perception of external situation, are 
rendered possible by a highly developed nervous system, 
and the marvellously complex sensory organs combined 
with it, of. which the eyes are especially remarkable. 
Independently of the generative organs, consisting of 
manifold parts-of greater or less importance, the history 
of the multiplication and’ development of the bee de- 
mands a study of itself. 
The function, and therewith the rank and value, of the 
bee’s body seem to us higher than that of the polype in 
proportion as it is more complex. The superior com- 
plexity and variety of the parts is anatomically evident, 
and similarly the higher phase of the life. The superior 
energy of the existence, the functional capacity and per- 
fection of the-bee as contrasted with the feebleness of 
the polype, is obviously a result, or more correctly an 
expression, of the greater mechanical and physiological 
division of labour. In one animal, as in the other, life 
is spent in the function of self-preservation and the 
maintenance of the species, or reproduction ; in both, 
the cycle of phenomena is limited, unbroken ; but the 
means of execution are very different, and ‘herior 
the general effect is different. In the variety and 
correlation of the organs destined for the different 
manifestations of life, we have a standard for the rank 
of the animals. This rank has a twofold character, 
general and special. In other words, the position of 
an animal in the system is defined, first, by the 
general attributes, which it has in common with the 
forms harmonizing with it in the main characters 
of their organization; and, secondly, by the more 
special characteristics, which place the animal in_ its 
