Vocal Cords in Quiet Respiration in Man, fyc. 



413 



From these tables it will appear that my own measurements on the 

 whole agree, so far as the apparent distance is concerned, with those 

 of Luschka and Von Bruns, who alone have expressed these con- 

 ditions in numbers. I can only assume that both these authors 

 speak of the apparent, not of the real, size when stating that the 

 average width of the glottis in both cases varies from 8 to 10 mm. ; 

 this, it is seen, is also the average of the apparent size in my own 

 measurements, the maximum being in men 14,* in women 12 mm., 

 and the minimum in both cases being 7 mm. The exact average as 

 resulting from my observations would be in men an apparent width 

 of nearly 10 mm., corresponding to an actual width of 13 - 5 mm., and 

 in women an apparent width of exactly 9 mm., corresponding to an 

 actual width of 11 '5 mm. I cannot say that I have been able to make 

 out any distinct relationship between the widths of the glottis and 

 the ages or statures of the persons examined. 



* This figure, corresponding to 19 mm. real size, entirely confirms the apparently 

 somewhat exaggerated descriptions given by Czermak and Solis Cohen, who state 

 that the glottis in some cases, eVen during quiet respiration, would admit a good- 

 sized finger. 



