i8 



PROBLEMS OF RELATIVE GROWTH 



Sheep Dog (Fig. 9) 



Data from Becher (1923) 

 Analysed in Huxley, 1927 



x 

 42-0 



05-3 

 74-5 

 85-5 

 99-3 



II2-6 

 I20-O 



y 

 22 -o 



48-3 

 58-0 



73-5 

 89-1 



102-0 

 II2-0 



x 



y 

 k 



30- 



cranial region (mm.). 



facial region (mm.). 



1-5 (except for highest values of x). 



40 60 80 100 



cranium length, mm. 



120 



Fig. 9. — Growth of the facial region relative to the cranial region in the skulls 

 of sheep-dogs (x) and baboons (©). 

 k for sheep-dog about 1-49 ; for baboon, points 2-5, about 4-25. 

 [Constructed from the data of Becher, 1923, and Zuckerman, 1926.) 



