Contents. 
page 
Presidential Address ... ... ... ... ... ... ... i 
Section I. 
Biology and Eugenics. 
I. Variazione E Erededita Nell'uomo ... ... ... ... ... 9 
(Variation and Heredity in Man) ... ... ... ... ... ... i6 
G. SERGI. 
II. On the Increase of Stature in certain European Populations ... 23 
SOREN HANSEN, M.D. 
III. Le Cosidette Leggi Dell'Ereditarieta Nell'Uomo ... .. ... 28 
(The So-called Laws of Heredity in Man) ... ... ... ... ... 38 
V. GUIFFRIDA-RUGGERI. 
IV. The Inheritance of Fecundity ... ... ... ... ... ... 47 
RAYMOND PEARL. 
V. La Psicologia Ethnica e La Scienza Eugenistica ... ... ... 58 
(Ethnic Psychology and the Science of Eugenics) ... ... .. ... 60 
ENRICO MORSELLI. 
VI. The Inheritance of Epilepsy ... ... ... ... ... ... 62 
DAVID F. WEEKS, M.D. 
VII. Influence de l'age des Parents sur les Caracteres Psycho-Physique 
des Enfants ... ... ... ... ... ... ... 100 
(The Influence of Parental Age on the Psycho-Physiological Characters of Children) 118 
ANTONIO MARRO. 
VIII. Genetics and Eugenics ... ... ... ... ... ... 137 
R. C. PUNNETT. 
Section II. 
Practical Eugenics. 
I. Rapport sur l'organisation Pratique de l'Action Eugenique ... ... 141 
(Report on the Practical Organisation of Eugenic Action) ... ... ... 146 
LOUIS QUERTON. 
II. Marriage Laws and Customs ... ... ... ... ... ... 151 
C. B. DAVENPORT. 
III. Eugenique Selection et Determinisme Des Tares ... ... ... 155 
(Eugenics Selection and the Origin of Defects) ... ... ... ••• 158 
FREDERIC HOUSSAY. 
IV. La Pdericulture avant la Procreation ... ... ... ... 457 
(General Considerations upon " Education before Procreation") ... .. ... 45^ 
ADOLPHE PINARD.