504 THE EXHIBIT 



7. Anthropometric studies of Indians. 



Exhibited by: Morris Steggerda, Cold Spring Harbor, N. Y. 



8. Researches on the white Indians of Panama. 



Exhibited by: Reginald G. Harris, Cold Spring Harbor, N. Y. 



9. Maps, pictures and statistical charts on Estonian racial types, weight 



of brain of Estonians, stature of Estonian soldiers, etc. 

 Exhibited by: Eugenics Society of Estonia, represented by Theophil 

 Laanes, Cold Spring Harbor, N. Y. 



10. Charts on racial, religious and language factors in nationality. 



Rhyme of race or "Ethnology for the Million." The "Zones and 

 Strata" concept applied to racial evolution and transport. 

 Exhibited by: Dr. Griffith Taylor, University of Chicago, Chicago, 

 111. 



11. Graphs (18) showing population growth in Germany. 

 Exhibited by: Dr. Friedrich Burgdorfer, Director of Statistischen 



Reichsamt, Berlin, Germany. 



12. Statistical tables (9) giving birth-rate analysis by date, age and social 



stock. . 

 Exhibited by: Dr. Willy Wagner-Manslau, Altstrasse Graben 58, 

 Danzig, Germany. 



THIRD FLOOR. BOOTH 14 TO 21. 

 BOOTH 14 — HEREDITY OF THE EYE 



Theme-sign. 



(a) The elimination of hereditary eye defects will be the next great ad- 



vance in preventive ophthalmology. 



(b) You can help prevent blindness by encouraging laws, visual tests, 



and education. 

 Exhibits: 



1. Cast of eye with muscles. 



Exhibited by: Perkins Institution, Watertown, Mass. 



2. Pedigree charts of families having two or more students at Perkins 



Institution. 

 Exhibited by: Perkins Institution, Watertown, Mass. 



3. Charts illustrating the construction of the eye and various diseases of 



the eye, eye tests, map of "The World of the Blind" and various 

 posters used for instructing the public. 

 Exhibited by: Perkins Institution and Massachusetts School for the 

 Blind, in cooperation with the Howe Laboratory of Ophthalmol- 

 ogy, Harvard Medical School. 



