G8 



THE VITAL FUNCTIONS. 



Ciivieriy after beinj:; 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 re- 

 moved by a horizontal section, at its origin from the hemi- 

 spherical body, or cupola, as it may be termed, where it has 

 a square prismatic form, so that its section presents the 

 square surface, 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, ii, 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 hemi- 

 sphere presented in Fig. 249. On the other hand, the dot- 

 ted line V, V, in Fig. 249, is that along which the vertical 

 section of the same animal, represented in Fig. 252, was 



made, four of the arms (a, a, a, a,) descending from the pe- 

 dicle being left attached to it. In these arms, or tentacula, 



