The author is indebted to many of his friends for their criticisms and suggestions in the preparation of the manuscript; but he desires particularly to acknowledge the assistance of Professor A. N. Talbot, Professor of Municipal and Sanitary Engineering at the University of Illinois, and of Professor M. L. Enger, Professor of Mechanics and Hydraulics at the University of Illinois, in the entire work; also that of Mr. T. D. Pitts, Principal Assistant Engineer of the Baltimore Sewerage Commission during the construction of the Baltimore sewers, for his suggestions on the first half of the book; and to Mr. Paul Hansen, consulting engineer, of Chicago, and to Mr. Langdon Pearse, Sanitary Engineer of the Sanitary District of Chicago, for their help on the section covering the treatment of sewage; and to Professor Edward Bartow, Professor of Chemistry at the University of Iowa, for his review of the chapter on Activated Sludge; in general his thanks are due to all others who have furnished suggestions, illustrations, or quotations, acknowledgments of which have been included in the text.
PAGES 1. Sewerage and the Sanitary Engineer. 2. Historical. 3. Methods of Collection. 4. Methods of Disposal. 5. Methods of Treatment. 6. Definitions. 1–8
7. Division of Work. 8. Preliminary. 9. Estimate of cost. METHODS OF FINANCING. 10. Bond Issues. 11. Special Assessment. 12. General Taxation. 13. Private Capital. PRELIMINARY WORK. 14. Preparing for Design. 15. Underground Surveys. 16. Borings. 9–23
17. Dry Weather Flow. 18. Methods for Predicting Population. 19. Extent of Prediction. 20. Sources of Information on Population. 21. Density of Population. 22. Changes in Area. 23. Relation between Population and Sewage Flow. 24. Character of District. 25. Fluctuations in Rate of Sewage Flow. 26. Effect of Ground Water. 27. Résumé of Method for Determination of Quantity of Dry weather Sewage. QUANTITY OF STORM WATER. 28. The Rational Method. 29. Rate of Rainfall. 30. Time of Concentration. 31. Character of Surface. 32. Empirical Formulas. 33. Extent and Intensity of Storms. 24–50
34. Principles. 35. Formulas. 36. Solution of Formulas. 37. Use of Diagrams. 38. Flow in Circular Pipes Partly Full. 39. Sections Other than Circular. 40. Non-Uniform Flow. 51–77