�������t¶��

When balance is disturbed—by anything from indigestion in a protozoon up to a storm on the ocean where he lives, there is a catastrophe.

The other protozoon was Vorticella monilata, Tatem, which has been found, not in association with Hydra, in Europe and S. America.

You open another book idly, and you see: Organic life, we are told, has developed gradually from the protozoon to the philosopher, and this development, we are assured, is indubitably an advance.

This protozoon secretes a shell about itself which has a characteristic shape, and often carries spines.

Instead of comparing with a mammal at the top of the organic scale, it is like a formless, undifferentiated protozoon at the bottom.