PLATE VI. 



This cut represents the third phalanx seen from its posterior 

 part ; and the navicular bone, — inferior, superior, and anterior 

 views. 



Fig. 1. 



Posterior part of the third phalanx (adult). 

 A Semi-lunar crest. 

 D Basilar process. 

 F Superior border. 

 G Spreading out of the articular face. 

 K Anterior view of the pyramidal eminence. 

 M Posterior view of the inferior face. 

 N Glenoid cavity of the superior face. 

 Q Portion of the articular surface corresponding to the anterior border 



of the navicular bone. 

 R Retrossal process. 

 S Edge of the plantar fissure. 

 V Posterior border of the third phalanx. 

 X Plantar orifice for passage of blood vessels. 



Fig. 2. 



Posterior part of the third phalanx. (Colt.) 



A Semi-lunar crest. 



D Basilar process. 



F Sujoerior border. 



M Posterior view of the bone. 



R Retrossal process. 



8 Plantar fissure. 



Fig. 3. 



Inferior face of navicular. 



C Transverse ridge. 



E Anterior border. 



H Extremity of the bone. 



Fig. 4. 



A Median riage or bulge of the superior face. 

 D Anterior superior border. 

 E Anterior inferior border. 



G Posterior border (is very thick and cribbled or pierced with vascular 

 orifices). 



Fig. 5. 



Anterior face of the navicular. 



E Soft part hollowed under the anterior articular facet. 

 H Articular facet corresponding to the posterior facet of the third pha- 

 lanx. 



