Dae, 
1911, 
1899. 
1903. 
1908. 
1917: 
1899. 
1900. 
1901. 
1902. 
1917. 
1921. 
1889. 
1906. 
1905. 
1908. 
1907. 
1913. 
1922. 
1901. 
1901. 
1904. 
FRETS, THE INDEX CEPHALICUS. 
LITERATURE. 
R. CREWDSON BENNINGTON and K. PEARSON. A study of the «Mere 
Skull. Biom. VIII, p. 300. 
F. Boas. The cephalic index. American Anthropologist. Vol. I, p. 448. 
L. Bork. Kraniologische Untersuchungen hollandischer Schädel Zeitschr. 
f. Morph. und Anthr. Bd. 5. S. 135. 
L. Bork. De bevolking van Nederland in hare anthropologische samen- 
stelling. p. 124—189. in J. H. GALLÉE. Het Boerenhuis in Nederland 
en zijn bewoners. Utrecht. Oosthoek. 
J. I. CRAIG. Anthropometry of Modern Egypts. Biom. V. 8.p. 66—78. 
C. B. DAVENPORT. Statistical Methods, with special reference to Biological 
Variation. New-York. 
J. DENIKER. Les races et les peuples de la terre. Paris. 
W. P. ELDERTON. Tables for testing the goodness of fit of theory to 
observation. Biom. V. 1, p. 155. 
Fawcett and LEE. A second study of the variation and correlation of 
the human skull, with special reference to the Naqada Crania. Biom. 
V. 1. p. 408—468. 
G. P. Frets. On mendelian segregation with the Heredity 7 Head- 
form in Man. Proc. K. Akad. v. Wetensch. Amsterdam Vol XX, 
p. 435 and 865. 
G. P. Frets. Heredity of Headform in Man. Genetica III. MART. 
NiJHOFF. The Hague. 
F. GALTON. Natural Inheritance. London. 
F. GALTON. Grades and deviates. Biom. V, p. 400. 
R. J. GLADSTONE. A study of the relations of the brain to the size of 
the head. Biometrika IV, p. 105. 
H. S. JENNINGS. Heredity, Variation and Evolution in Protozoa. II 
Heredity and Variation of Size and Form in Paramecium, etc, Proc. 
Amer. Phil. Soc. Philadelphia. V. 47, p. 393. 
W. JOHANNSEN. Ueber Dolichocephalie und Brachycephalie. Zur Kritik 
der Index-Angabe Arch. f. Rassen- und Gesellschafts, biologie. 4. Jhrg. 
S 171 — S 188. 
W. JOHANNSEN. Elemente der exakten Erblichkeitslehre. Jena. G. 
FISCHER. 
J. Kaup. Konstitution und Umweltim Lehrlingsalter Lehmann. München. 
A. LEE. A first study of the correlation of the human skull. Phil. 
Trans V. 196 A. p. 225. 
W. R. MAcDONELL. On criminal anthropometry and the identification. 
of criminals. Biom. I. p. 177. 
W. R. MACDONELL. A study of the Variation and correlation of the 
human skull with spec. ref. to Engl. Crania. Biom. III, p. 19. 

