250 



MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



TABLE XXV. Length in millimetres of 28 pter.ia. Salado. 



TABLE XXVI. Ordination of 19 facial indices according to Yirchoir. Rahulo. 



Variation, 28.40. Theoretical mean of variation, 117.05. Skull nearest t,o mean and median 

 of ordination, H. 41. Average, 117.G4. 



TABLE XXVII. Seriation of 19 facial indices according to Virchow. Salado. 



Maximum of frequency, 127. The seriation is so incoherent that the discussion of variation 

 as dependent on it has little significance. 



TABLE XXVIII. Ordination of 34 upper facial indices according to Virchow. Salado. 



Variation, 17.37. 

 Average, 69.82. 



Theoretical mean of variation, 70.90. Skull nearest to mean, H. 11. 



