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THE POPULAR SCIENCE MONTHLY 



defect or disease. Class B, aliens not under class A, but who possess 

 some defect or disease which is likely to interfere with the ability to 

 earn a living. Class C, aliens who present a defect or disease of still 

 lesser seriousness, not affecting ability to earn a living, but which none 

 the less must be certified for the information of the immigration 

 inspectors. 



Under class A, the excluded, are listed idiots, imbeciles, the feeble- 

 minded, the epileptics, the insane, persons afflicted with tuberculosis of 

 the respiratory, intestinal or genito-urinary tracts, and loathsome or 

 dangerous contagious diseases. By contagious the law means communi- 



A Cosmopolitan Group on the Roof of the Detention Quaktbbs. 



cable. Loathsome contagious diseases include those whose presence ex- 

 cites abhorrence in others, and which are essentially chronic, such as 

 favus, ringworm of the scalp, parasitic fungus diseases, Madura foot, 

 leprosy and venereal disease. Dangerous contagious diseases are such as 

 trachoma, filariasis, hookworm infection, amoebic dysentery, and en- 

 demic hematuria. 



Under class B, diseases and defects not in class A but which affect 

 ability to earn a living, are such conditions as hernia, organic heart 

 disease, permanently defective nutrition and muscular or skeletal devel- 

 opment, many deformities, varicosities of the lower extremities, pre- 

 mature senescence and arterial degeneration, certain nervous diseases, 

 chronic joint inflammations, poor vision and tuberculosis of the bones, 

 skin or glands. The immigration law makes no distinction between 



