PERSONALITY OF PLANTS 
ered with a sea of restless, moving liquid, over- 
charged with a heavy atmosphere of vapour, 
so dense that not a single ray of light could pene- 
trate it. As the process of cooling went on, more 
and more moisture condensed out of the air, 
until finally the first ray of light reached the 
universal sea and terrestrial day began. 
Here in this dim, watery world, about the 
time that the first land began to emerge from 
the deep, by some divine, mysterious agency, 
the first life was born. 
No doubt it was one-celled, free-moving, and 
like modern Flagellates, partaking of the nature 
of both plant and animal. 
Slowly, and in response to evolutionary 
promptings, simple aquatic plant forms began 
to develop from the primary single cells. An- 
imal life may have begun a simultaneous devel- 
opment, but if it did, it did not become strong 
enough to make any impress on the geologic 
rock from which we draw our data. 
Certainly the plants were in the ascendency. 
The mobile green Algae were characteristic of 
the time. It is a remarkable thing that though 
they are probably the progenitors of all that 
[18] 
