MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



245 



Variation, 13.59. Theoretical mean of variation, 85.76. Skull nearest to mean, 11.19. Average, 

 83.87. 



H. 28, a child's skull, with index of 77.70, and H. 32, aberrant in size ami form (see 11), with 

 index of 97.2!), are excluded from the above ordination. 



TABLE IX. Seriation of 39 vertico-longitudinal indices. Salado. 



lUaxirnura of frequency, 83; 97 to 98, one skull, not included in the ordination. 

 TABLE X. Ordination of 11 vertico-longitud^nal indices of apparently normal skulls. Salado. 



TABLE XI. Venation of 11 vertico-longitudinal indices of apparently normal skulls. Salado. 



TABLE XII. Ordination of all the skulls in which the vertico-longitudinal index exceeds the cephalic, 

 showing excess in per cent of greatest length. Salado. 



Variation, 4.90. Theoretical mean of variation, 2.95. Skulls nearest to mean, II. 9, and H. 13. 

 Skulls H. 18 and H. 23 are from the apparently normal group. 



TABLE XIII. Seriation of all the skulls in which the vertico-longitudinal index exceeds the cephalic, 

 showing excess in per cent of greatest length. Salado. 



