Physical Aspects of Protoplasmic Streaming 



203 



Fig. 2. Observation chamber with two partitions, p. 



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b B 



B 



Fig. 3. A. The cross section through the prepared observation chamber at the 

 agar wall. The broken line, e, shows the upper edges of the two glass partitions. 

 B. The longitudinal section through the middle part of the same chamber 

 divided into the two compartments, A and B. The protoplasm, a and b, in the 

 separate compartments and the connecting strand, st, are dotted. The shaded 

 parts in figures A and B represent agar. That part in which the hatching runs 

 from upper left to lower right represents an agar sheet adhering to the glass 

 slide, whereas that part in which the hatching runs from lower left to upper 

 right represents agar poured between the two partitions, p, just before inverting 

 the slide over the chamber, and which then serves to seal the chamber. 



