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CELL INTELLIGENCE THE CAUSE OF EVOLUTION 



FIG. 9. Primitive eggs of various animals, performing amoeboid movements 

 (very much enlarged). All primitive eggs are naked cells, capable, of change of 

 form. Within the dark, finely granulated protoplasm (egg-yelk) lies a large 

 vesicular kernel (the germ-vesicle), and in the latter is a nucleolus (germ-spot); 

 in the nucleolus a germ-point (nucleolinus) is often visible. Fig. A 1 A 4. The 

 primitive egg of a Chalk Sponge (Leticulmis echinus), in four consecutive condi- 

 tions of motion. Fig. B 1 B 8. The primitive egg of a Hermit-crab (Chon- 

 dracanthus cornutus), in eight consecutive conditions of motion (after E. van 

 Beneden). Fig. C 1 C 5. Primitive egg of a Cat, in four different conditions of 

 motion (after Pfluger). Fig. D. Primitive egg of a Trout. Fig. E. Primitive 

 egg of a Hen. Fig. F. Primitive human egg. HAECKEL. 



