722 [Recess, 1863. 



sists of an exceedingly fine network of fibres interspersed and con- 

 nected with nuclei. This network is partly formed by the minute 

 ramifications of the processes which proceed from the large nucleated 

 cells along its inner border, and which completely reach the surface, 

 communicating with each other in their course. In my preparations 

 this arrangement is very distinctly seen. 



The facts contained in these notes will be illustrated, as soon as 

 possible, by appropriate drawings. 



