EXPLANATION OF THE PLATES. 



fungiform papilla, but intermediate in structure 

 between it and a filiform papilla. 27 diameters. 

 Fig. 8. Filiform papillae, showing their tubular form, with 

 the epithelial processes partially removed, and ex- 

 hibiting numerous simple papillae placed between 

 the compound ones. 27 diameters. 



