Resume of the Life and Labours of Francis Gallon xxiii 



IV. DevpJopment oj Utatin/lcal Theory: 

 Departure from Qiietelet 

 Statistical Scales 

 Percentiles and Grados ... 

 Ogive Curves 



Geometrical Mean (Fechner'.s I^aw) 

 Regression 



Correlation and its Measurement 

 " Ranks " and the Correlation of Ranks 

 First and Second Prizes, i.e. relative value of extreme ability 

 (16 memoirs) 



V. Application to Theory of Heredity : 

 English Men of Science 

 Laws of Heredity 

 Inheritance and Regression 

 Natural Inheritance 



[Point of Departure of Biometric School] 

 Law of Ancestral Heredity 

 Noteworthy Families 



(36 memoirs and books, etc.) 



V'l. From the measurement of characters for inheritance naturally 

 arose the problem of their permanence : 



(i) Personal Identification and Description 

 (ii) Finger Print Investigations ... 

 (13 memoirs, etc.) 



VII. Application to Huinan Affairs: Euyeiiics : 

 Hereditary Talent and Character 

 Gregariousness in Cattle and Men 

 Hereditary Improvement 

 Marks for Physical Fitne.-is 

 Possible Improvement of Human Breed 

 Eugenics Addresses and Essays 

 (17 memoirs, etc.) 



Years 



1869 

 1870 

 1870—1907 

 1875 

 1879 

 1885 

 1889 

 1889 

 1901 



1874 



1876-7 



1885 



1889 



; 1889 1), 1897 

 1906 



1888 

 1891—1902 



1865 

 1872 

 1873 

 1889 

 1901 

 1901-10 



