VARIOUS FORMS OF ANIMAL CELLS. 13 



FIG. 3. FIG. 4. 



A large branching cell from the gray cortical layer of the hn- 

 inan cerebellum, showing nucleus and nucleolus. Magnified 

 350 diameters. 



FIG. 5. FIG. 6. 



Muscular liber-cell 

 from a human ar- 

 tery. Magnified 

 350 diameters. 



Cell with two nuclei, each with a 

 nucleolus, from the spinal cord 

 of Man. Magnified 350 diam. 



FIG. 7. 



Ivory cells from the tooth 

 of a Dog. Magnified 350 

 diameters. 



FIG. 8. 



Cartilage of tbe human 

 rib. Nucleated cells 

 forming iu the struc- 

 tureless matrix, some 

 of the cells having two 

 nuclei. Magnified 100 

 diameters. 



Formation of Connective tissue from 

 cells. Magnified 100 diameters. 



Cilia. 



Full grown cells. 



Intermediate layers 

 of cells. 



Layers of young un- 

 modified cells. 



Basement layer. 



, Elastic fibers. 



Epithelial cells from the human 

 trachea. Magnified 350 diame- 

 ters. 



