196 The Structure of Protoplasm 



drives the fluid endoplasm forward, it pours into the advancing buds 

 and stretches the thin gel layer. Suddenly clear, granule-free hyaline 

 fluid appears beyond the granular layer and expands. It does not 

 escape to the outside but is evidently enclosed by a thin invisible 

 interface protoplasmic membrane, and probably also by a new thin 

 gel layer. 



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