urse of color heredity in
the guinea-pig 85
9.--Diagram illustrating the relation of the germ cells
in a simple case of Mendelian heredity 92
10.--Diagram illustrating the phenomenon of regression 107
11.--Diagrams showing the relation between order of
birth and incidence of pathological defect 125
12.--Coefficients of heredity of physical and psychical
characters in school children 144
13.--Family history showing brachydactylism. Farabee's data 151
14.--Family history showing polydactylism 155
15.--Mother and daughters showing "split hand" _Facing_ 156
16.--Two family histories showing "split foot" _Facing_ 158
17.--Family history showing congenital cataract 159
18.--Family history showing a form of night blindness 161
19.--Family history showing a form of night blindness 163
20.--Family history showing Huntington's chorea 165
21.--Family history showing deaf-mutism 167
22.--Family history showing feeble-mindedness 169
23.--Family history showing angio-neurotic oedema 170
24.--Family history showing tuberculosis 171
25.--Family history showing infertility 175
26.--Family history showing ability 177
27.--Family history showing ability 179
28.--History of three markedly able families 183
29.--History of _Die Familie Zero_ 185

I

THE SOURCES AND AIMS OF THE SCIENCE OF EUGENICS

I

THE SOURCES AND AIMS OF THE SCIENCE OF EUGENICS

"Bravas to all impulses sending sane children to the next age!"

Eugenics has been defined as "the science of being well born." In the
words of Sir Francis Galton, who may fairly be claimed as the founder
of this newest of sciences, "Eugenics is the study of the agencies
under social control, that may improve or impair the racial qualities
of future generations, either physically or mentally."

The idea of definitely undertaking to improve the innate
characteristics of the human race has been expressed repeatedly
through