260 The Lesson of the Unnucleated Cell. [May, 
multiplication and diffusion, the energy being continually 
expended, and yet, though self-contained, continually aug- 
mented — an end attained by generation and muliplication. 
The Aphides are a remarkable instance of the generative 
variations to be found in a single species, — in fadh seem to 
include all the generative and accumulative modes observed 
by Science. They have fission, gemmation, virginal, gene- 
rative, are viviparous and oviparous, and what of their 
debris when in natural sources they find their end — a minute 
white scale, which no imagination could ever conceive to be 
the carcase of an animal. Again, of their advent, they are 
said to be oviparous. The first presentment is a glutinous 
substance, termed “ honey dew,” which in a few days teems 
with innumerable living objedts, — black Aphides, — and when 
they subside, where are their carcases? I have seen the 
creatures in millions, but no appreciable debris, and so it 
may be with the carcases of the Protozoa : crushed Aphides 
and crushed Protozoa we may see, but these carcases are 
no continuing objedts. 
The unnucleated cell is the most simple, and at the same 
time the most concentrated, form of the life energy, as from 
it spring all the complex forms in which we see the life 
energy existing. The nucleated cell is the complex form of 
the life energy; systems of cells grow out of it, and 
these systems of cells are aggregated life energies : the 
aggregation of systems of cells in their ultimate energies 
digresses into the various complicated forms in which life 
energies are colledted (vegetable and animal), each pro- 
gressing, developing, and growing in insensate degrees ; 
hence in the aggregated systems of cells, each having par- 
ticular adaptations for the exemplification of particular 
powers, all of which are the outcome of the unnucleated 
cell ; the perpetuation of the life energy is shown by its dif- 
ferentiations, adaptations, and homologous agglomerations, 
or so constitute the different forms of phenomenal nature : all, 
in fadt, are but the elongation and diffusion of the life 
energy condensed in the first unnucleated cell : which, 
by its fundtional agglomeration, imprisons and diffuses its 
environments, and thereby perpetuates itself, making to 
itself diversities, all growing out of that primal energy dis- 
coverable in the simple cell. It is the power we know as 
the living impulse which in itself contains all forms of life, 
and out of which all forms of life have diverged. A won- 
derful support of this conclusion is that the life energy 
concentrated in the simple cell is found in the blood cor- 
puscles, which multiply by spore formations, and in some 
