Tuberculosis^ Heredity 

 and Snvironment 



BY 



KARL PEARSON rRR.S. 



GALTON PROFESSOR OF EUGENICS, UNIVERSITY OF LONDON 



BEING A LECTURE DELIVERED AT THE GALTON LABORATORY 

 FOR NATIONAL EUGENICS, MARCH 12, 1912 



LONDON 



PUBLISHED BY DULAU AND CO., LTD. 



37 SOHO SQUARE, LONDON 



1912 



