316 



WILLIAM SEIFRIZ. 



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DESCRIPTION OF DRAWINGS. 



FIG. i. A disintegrating Fucus ovum in which smaller craters have burst forth 

 subsequently to several seconds of activity on the part of the larger crater. 



FIG. 2. A degenerate Fucus ovum in which discarded fragments of the wall are 

 seen, and in which dissemination of granules is very active in one region while 

 non-existent in another. 



FIG. 3. The wild and rapid scattering of the inclusions of an exploded Fucus 

 egg. 



