STRUCTURAL CHARACTERS OF ANIMAL ORGANISMS. 47 



Fibrous Tissue. The cells may become further differen- 

 FIG. 25. 



Cells of mucous tissue with branching processes (B) and a couple of elastic 

 fibres (F). (Ranvier). 



tiated and fibrillated. When the thickness of the cell processes is 



FIG. 26. 



Portion of tendon from the tail of a young rat, stained with gold chloride, 

 showing arrangement of flattened cells on bundles of fibrils. (After Klein.) 



great, and their fibrillation well marked, the cells appear to devote 



