506 THE EXHIBIT 



BOOTH 19 — LABORATORY FOR CHILD STUDY 



Theme-sign. 



Foster children represent diverse heredity but in schools like Mooseheart 

 they are given uniform environment. This set-up helps to factor out 

 the essential different contributions of heredity and environment in 

 human development and character. 

 Exhibits : 



1. Pictures (28) from Mooseheart School. 



Exhibited by: Dr. R. M. Binder, 279 Prospect Street, East Orange, 

 N.J. 



BOOTH 20 — LABORATORY FOR THE STUDY OF RACE PROBLEMS 



Theme-sign. 

 Nations may well invest in laboratories for the study of problems con- 

 nected with the conservation of their best racial stocks. 

 Exhibits: 



1. Posters and charts illustrating hereditary mental traits, measured 

 and expressed in numbers. 

 Exhibited by: Jon Alfred Mjoen, Vinderen Laboratory, Oslo, Nor- 

 way. 

 Basic psychic traits measured in II, III and IV generations. 

 Abilities of children in relation to those of parents, grandparents, side 



lines. 

 New method for a geneostatistical analysis of hereditary musical 



endowment. 

 Homogenial and heterogenial matings. 



BOOTH 21 — SOCIAL HYGIENE AND EUGENICS 



Theme-sign. 



Sound minds and sanitary bodies give sound hereditary endowments the 

 opportunity to find normal development. Social diseases prevent re- 

 production, hamper development and cause destruction of body and 

 mind. 



Exhibits: 



1. Charts pertaining to the prevention and cure of venereal diseases. 

 Exhibited by: British Social Hygiene Council, Inc., Carteret Street, 



London, England. 



2. Posters, pamphlets and books. 



Exhibited by: American Social Hygiene Association, 450 Seventh 

 Ave., New York, N. Y. 



