REPRODUCTION BY FISSION. IQI 
Now, when one examines this simplest form of propaga- 
tion, this self-division, it surely cannot be considered 
wonderful that the products of the division of the original 
organism should possess the same qualities as the parental 
individual. For they are parts or halves of the parental 
organism, and the matter or substance in both halves 
is the same, and as both the young individuals have 
received an equal amount and the same quality of matter 
from the parent individual, one can but consider it 
natural that the vital phenomena, the physiological qualities 
should be the same in both children. In fact, in regard to 
their form and substance, as well as to their vital phenomena, 
the two produced cells can in no respect be distinguished 
from one another, or from the mother cell. They have 
inherited from her the same nature. 
But this same simple propagation by self-division is not 
only confined to simple cells—it is the same also in the 
higher many-celled organisms; for example, in the coral 
zoophytes. Many of them which exhibit a high complexity 
of composition and organization, nevertheless, propagate 
themselves by simple division. In this case the whole 
organism, with all its organs, falls into two equal halves as 
soon as by growth it has attained a certain size. Each half 
again develops itself, by growth, into a complete individual. 
Here, again, it is surely self-evident that the two products 
of division will share the qualities of the parental organism, . 
as they themselves are in fact halves of that parent. 
Next to propagation by division we come to propagation 
by the formation of buds. This kind of monogony is 
exceedingly widely spread. It occurs both in the case of 
simple cells (though not frequently) and in the higher organ- 
