3. Insects and disease. H. B. Wood, Sanitation Practically Applied, pp. 420-444.

4. Vital statistics. Ibid., pp. 25-65; G. C. Whipple, Vital Statistics, pp. 308-337.

5. Sources of water supply. W. B. Munro, Principles and Methods of Municipal Administration, pp. 122-142.

6. The disposal of garbage. Ibid., pp. 167-183.

7. The inspection of food. H. B. Wood, Sanitation Practically Applied, pp. 205-232.

8. The smoke nuisance. Hollis Godfrey, The Health of the City, pp. 1-8. (See also United States Bureau of Mines, Bulletin, No. 49.)

9. Tenement-house reform. C. A. Beard, American City Government, pp. 287-310.

10. Municipal housing abroad. Hollis Godfrey, The Health of the City, pp. 263-301; F. C. Howe, The Modern City and Its Problems, pp. 284-304.

11. The work of local health authorities. Moses N. Baker, Municipal Engineering and Sanitation, pp. 248-258; Henry Bruère, The New City Government, pp. 401-413.

12. Health and education. H. B. Wood, Sanitation Practically Applied, pp. 445-462; F. W. Burks and J. D. Burks, Health and the School, pp. 73-102; E. B. Hoag and L. M. Terman, Health Work in the Schools, pp. 1-35.