88 



THE VITAL FUNCTIONS. 



being thus injected, are represented in the 

 annexed figures ; the first of which (Fig. 249), 

 shows the under surface of that animal, after the 

 pedicle has been removed by a horizontal section, 

 at its origin from the hemispherical body, or 



cupola, as it niay be termed, where it has a 

 square prismatic form, so that its section presents 

 the square surface, Q, Q. Fig. 252 is a vertical 

 section of the same specimen ; both figures being 

 reduced to about one-half of the natural size. 

 The dotted line, h, h, in the latter figure, shows 

 the plane where the section of the pedicle was 

 made in order to give the view of the base of the 

 hemisphere presented in Fig. 249. On the 

 other hand, the dotted line v, v, in Fig. 249, is 

 that along which the vertical section of the same 



