SIXTEEN MONTHS. 



69 



Pig. 58. 



Sixteen Months (Figs. 56, 57, 58). — All of the teeth are in contact. 

 The superior corner teeth are in apposition with the inferior, and have 

 commenced to be leveled in both jaws ; the enamel of the cups and the 

 peripheral enamel are separated ; the crown of the tooth is entirely free 

 from the gum. Often at this period the inferior pinchers are leveled, 

 and sometimes tlie inferior intermediate teeth are also leveled. In the 

 upper jaw the tables of all teeth are entirely formed, the incisive arches 

 lose their convexity. 



