THEIR ALLIES. 79 
Insects, as a whole, are much smaller than the Crusta- 
cea; for example, compare a Honey bee or Hawk moth 
with a Lobster or Crab. This diminution of size is due to 
the greater concentration of parts, and their compression 
into a much less bulk. Crustacea are mostly inhabitants of 
the water, while Insects are, in some form, almost exclu- 
sively terrestrial. As the Whale exceeds in size the D 
or Lion, or Man himself, so does the Lobster surpass in 
bulk the Bee, though the latter is a much more highly 
organized animal, with a more complicated outer crust, a 
more complex system of nerves, bloodvessels and muscles. 
There are various grades of superiority among insects. 
Rank among men is determined by one’s superior intel- 
ligence, and less and less likeness to the savage. Thus 
writers on Ethnology place the European and Australa- 
sian at two extremes. On this principle the zoologist clas- 
sifies animals by their greater or less résemblance to the 
lowest types. Thus among Articulates, the Worms are 
the simplest in form, and in all respects the lowest. - The 
Crustacea are placed next in the natural system, which 
_ leaves the Insects topping the series. In classifying the 
subdivisions of the class of Insects, we observe the same 
principle. In locating an Insect in what seems to us its 
memes within its own group, we e must follow this na 
the Sone ale (Pods oped In these forms 
the body is slender and wormlike, and the head is many 
times smaller than the rest of the body. In the Honey — 
bee however, which is the highest among all prs 
the head is but little S and yet very distinct from 
