2. Examination of persons known to have been exposed or presumably predisposed.

3. Systematic examination of school children during their course and on leaving school to go to work.

4. Professional advice as to choice of occupation in cases where there is apparent predisposition to disease.

V. After-Care of Arrested Cases

1. Instruction in healthful trades in the sanatorium.

2. Training for professional nursing in institutions for the care of tuberculous patients.

3. Farm colonies.

4. Convalescent homes or cottages.

5. Aid in securing suitable employment on leaving the sanatorium.

6. How to deal with the danger of a return to unfavorable home conditions.