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ROBERT BENNETT BEAN 



This paper is divided into two parts: "Ears of the morgue 

 subjects," and ''Ears of the hving subjects." 



EARS OF THE MORGUE SUBJECTS 



The ears of the morgue subjects were measured in 1914 after 

 having been preserved in formalin for variable periods of time 

 from a few weeks to several years. 



Each ear was measured as prescribed by Schwalbe, Ranke, 

 Martin and others (13, 15, 16). Seven measurements of each 

 ear were made, the total length, total breadth, cartilage length, 

 ear base, Schwalbe's true ear length (15), the concha length and 

 concha breadth. The concha breadth and length are measure- 

 ments devised by me to determine the concha index. The 

 concha length is measured from the point where the inferior 

 crus of the concha emerges from the ascending helix, to the 

 inferior border of the intertragic incisure. The concha breadth 

 is measured from the supra-tragic incisure to the point at the 

 greatest distance from this on the inside of the concha opposite. 



Helix. Measurements and indices 



The average total length and breadth of the ear in millimeters 

 follows : 



TABLE 1 



