PLATE VI. 



Three views of the lower jaw, half the natural size. 

 Fig. 1. Inner side of the right ramus. 



Fig. 2. Upper surface of the lower jaw, showing the shape of the grind- 

 ing surface of the teeth. 



a. The condyle. 



b. Base of the coronoid process. 



c. Angular process. 



d. Section of the symphysis. 



e. Prominence for the attachment of the retractores labii iuferioris 

 /. Posterior orifice, or entry of the dental canal. 



g. External and posterior outlet of the dental canal. 



Fig. 3. Under surface of the left ramus of the lower jaw. 

 d. External and anterior outlets of the dental canal. 



