EPITHELIAL TISSUE. 



A. Squamous epithelium. B. Columnar epithelium. 



A. Squamous epithelium: (a) Squamous cell; (b) Cell -wall; (c) Protoplasm; 

 (d) Nucleus; (e) Nucleolus; (f) Cell on edge; (g) Group of cells; (h) Salivary cor- 

 puscle ; (i) Epithelium of a frog. 



B. Columnar epithelium : (a) Columnar cells from stomach showing cell -wall 

 and nucleus flat surface ; (b) Columnar cells end view. 



A. Ciliated epithelium. B. Glandular epithelium. 



A. Ciliated cells: (a) Cells, showing cell- wall and nucleus; (b) Cilia; (c) Gob- 

 let ceUs; (d) Section of stratified ciliated epithelium. 



B. Glandular epithelium: (a) Cuboidal cells from liver; (b) Nucleus. 



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