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DR MATTHEW YOUNG. 



that where measurements for certain characters of the Australian are available for 

 comparison, the coefficients of variation are sensibly greater than in the present 

 Scottish series of skulls in all cases, and than in Macdonnell's English series in 



Fig. 4. — Frequency curve for basi-bregmatic height in 100 male and 100 female skulls. 



most cases. As we shall see later, the same relationship holds in the Tasmanian and 

 Scottish in regard to certain dimensions in Klaatsch's scheme for the examination 

 of skulls. The Tasmanian not infrequently shows greater variability than the Scottish 

 skull for the same character. Are we to regard these in the light of " exceptions 



