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We may now turn to consider the remarkable Protamoeba, or unnucleated Amoeba. I have, in the first volume, pointed out the great importance of the ordinary Amoeba in connection with several weighty questions of general biology.
By this important differentiation of the plasson into nucleus and cell-body, the organised cell was evolved from the structureless cytode, the nucleated from the unnucleated plastid. That the first cells to appear on the earth were formed from the Monera by such a differentiation seems to us the only possible view in the present condition of science.
The earlier and lower stage are the unnucleated cytodes, the body of which consists of only one kind of albuminous matter the homogeneous plasson or "formative matter." A phytomoneron, the globular plastids of which secrete a gelatinous structureless membrane. The Monera are permanent cytodes. Their whole body consists of soft, structureless plasson.
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