280 MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



J. Alveolar external posterior width: Taken at the junction of the exterior arch and the^«»i 

 coupe which is behind the wisdom tooth beneath the articulation of the pterygoid apophysis. 



K. Anterior palatine width : Taken between canine and second incisor. 



M. Posterior palatine width. 



P. Palatine depth. 



Q. Height and width of the posterior branch of mandible: Height from angle to upper edge of 

 condyle; width at right angle with the above. 



11. External bicondylar width : Taken between the outer edges of the condyles of mandible. 



S. Basilo-mental radius. 



U. Superior alveolar radius. 



V. Nasal radius. 

 W. Intersuperciliary radius. 



X. Metopic radius. 



Y. Obelic radius. 



Z. Inial radius. 



d. Anterior projection of the cranium or pre-basilar projection. 



e. Posterior projection of the cranium or post basilar projection. 

 /. Superior facial projection or projection of the ophryon. 



The above three {d, e, and/) should be taken with regard to alveolo condylean ])lane. 



