MISCELLANEOUS. 



427 



7 years. The cups in center of teeth ai-e large. 



8 years. A trifle smaller. 



9 years. Still smaller. 



11 years. Smaller. 



12 years. Cups in center of teeth are smaller and nearly round. 

 14 years. The teeth are round and cups have nearly disappeared, 

 16 years. Are a mere speck in the teeth ; scarcely discernible. 



iS years. The cups have worn away, and the teeth are round.. 



