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HAROLD’S DISCUSSIONS. 
The name of this jelljlike being is arneba 
(change). As we have seen, it moves, breathes, and 
digests its food, and is one of the simplest of animals. 
Rig. 111.— Rhizopod animals. A, a foraminifera, front and side 
view; JS, Lobosa; O, ameba proteus; D, Clathulina elegans; 
E, sun-animalcule. 
Its body is made np of one cell, but the cell is in itself 
not at all simple; it is composed of very complex 
matter. 
A hen’s egg is the best illustration of an enlarged 
cell. It has a covering which we call the shell. In 
