OUR FACE FROM FISH TO MAN 



Second, the anthropological method studies the 

 variations of the face in different races and en- 

 deavors to arrive at general concepts of pure and 

 hybrid racial types. Third, the ontogenetic of 

 embryological method describes the development 

 and growth of the head as a whole and of its several 

 parts. Fourth, the genetic method studies the 

 heredity of facial characteristics, tracing through 

 successive generations the results of homozygous 

 and heterozygous matings with reference to par- 

 ticular features. Fifth, the physiological method 

 studies the chemical factors of the growth and 

 development of the face, including those growth- 

 stimulating substances that the embryo derives 

 from its parents and those that are produced by 

 its own various endocrine glands. Sixth, the clin- 

 ical method notes that certain types of face are 

 frequently associated with low resistance to cer- 

 tain diseases and seeks to determine the causes of 

 this association. Seventh, the psychologic or 

 behavioristic method endeavors to determine 

 whether there are measurable correlations between 

 definite combinations of features and grades of 

 intelligence. Can an expert predict from exam- 

 ining faces alone which individuals will score high 



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