20 original; 21 counterpart. A typical slab of " Fucoides 

 graphica"; short straight rods (depressions) with tapering and 

 squared ends lying at various angles with reference to each other 

 and to the bottom. Some of these angles are approximate to or 

 suggestive of ice angles and there is observable a tendency to radia- 

 tion from several centers. 



[226] 



