STATISTICAL BIOLOGICAL STUDY. 63 



Coefficient of variability; significance: Pearson, '96; Brew- 

 ster, '97; Duncker, '00 b ; Davenport, '00 e . 



Mutations: Bateson, '94; Howe, '98; deVries, '01-' 03; 

 Weldon, '02. 



Individual vs. specific variation: Brewster, '97, '99; Field, 

 '98; Mayer, '02; Davenport '03*>. 



Variability independent of sexual reproduction: Warren, 

 ; 99, '02; Pearson and others, '01 c, pp. 359-362. 



Relative variability of the sexes: in man, Pearson, '97 C ; 

 Brewster, '99; Pearl, '03; in crabs, Schuster, '03. 



Relative variability of primitive and modern races: in man, 

 primitive races less variable: Pearson, '96, p. 281; Pearson 

 (and others), '01 c , p. 362. 

 Man. 



Stature. Seriation for adults of different races: Bavari- 

 ans, Ammon, '99; United States, recruits, Baxter, '75, Pear- 

 son, '95, p. 385; various, Macdonell, '02; English middle 

 upper classes, Galton, '89, Pearson, '96, p. 270; Germans, 

 Pearson, '96, p. 278; French, Pearson, '96, p. 281; Cam- 

 bridge University students, Pearson, '99. 



Seriation at different ages: British infant at birth, Pearson, 

 '99; school children, Bowditch, '91; St. Louis schoolgirls, 

 Porter, '94, Pearson, '95, p. 386; Australian adult whites, 

 Powys, '01. 



