" 



8 STATISTICAL METHODS. 



(greatest length) (greatest breadth) 



Index of Ovalness, ', 



(greatest length) 



for values from .50 to .1. 



tt ~ , . , (greatest diam . ) (greatest brdth. ) 



(greatest diameter) 

 for values from .1 to 0. 



radius of curvature of 



" " Ovateness or obovateness. ^ ^ ^ r . 



radius of smaller end 



diameter at 



Cuneateness, > r angle abc (line a-c 



diameter at 



passing through middle of major diameter), 

 length of radius of curve at broad 



" " Spatulateness, ^ ^ . . 



transverse diameter of narrow 



part of organ 



" " Acuminateness, angle abc at apex (Fig. 8). 



" " Acuteness, angle abc at apex. 



" " Obtuseness, angle abc at apex and radius of curva- 

 ture. 



< Truncatedness, angle abc at apex and radius of curva- 

 ture. 



cosine 



" " Retuseness, of | angle abc. 



2 X sine 



" " Serrateuess, number of teeth per linear unit of edge, 



average angle of tooth. 



" " Dentateness, number of teeth, average angle of tooth, 

 " " Crenateness, number of waves, average radius of 



curvature of waves. 



depth of waves 



" Repandness, -, average radius of cur- 



length of waves 



vature of waves. 



depth of waves 



" " Sinuateness, : -, average radius of cur- 



length of waves 



vature of waves. 



depth of incision 



" Incisedness, - ^ =-. . 

 opening 01 incision 



