INDEX 



Page numbers of illustrations are indicated by heavy face typt 



Bacteria, pathogenic 11, 24, 25 



nitrifying 14-15, is, 20, 21, 22, 23 

 putrefactive 13, 14 



Barking, Eng., filter experiments 20 



Bathing places, municipal 8, 9 



Berlin, sewage farming 17. 18 



Birmingham, Eng., sewage plants 10, 11, 12. 

 22, 23 



Bradford, Eng.. sewage utilization 13 



British Royal Commission investigations is 



Brockton, Mass. intermittent filter 16 



Bunzlau, irrigation 15 



Cameron septic tank 13-14, 23, 24, 25 



China, irrigation 15 



Chloride of lime 25 



Cities, removal of wastes 5. 13, 15, 25 



Clam digging near sewer outlet 8 



Columbus. O. Sewage plants 2, 20, 23. 24 



Contact bed 19, 20-21, 22, 23, 25 



Detritus tank 9, 11 



Dibdin, \V. J. 20 



Dilution, sewage disposal by 14-15, 18 



Diseases, infectious 8. 9. 25 



Disinfection, sewage 24-25 



Distributors, sewage 22 



East River conditions 7 



Emscher Drainage Board 14 



England, sewage purification 10. 11, 12, 13, 

 15, 16, 17, 18. 19, 20. 22. 23, 25 



Filtration 



contact bed 19, 20-21, 23. 25 

 intermittent sand 16, 17, 18-19, 21. 23. 



25 

 trickling bed 2. 20, 21-23. 25 



France, sewage purification 17 



Gas, sewage 14 



Germany, sewage purification 11, 14, 15, 17, 

 18 



Grit chamber (detritus tank) 9, 11 



Harlem River conditions 7. 8 



Health of Towns Commission 15 



Bering. Rudolph 22 



Hudson River conditions 7, 8 



Imhoff liquefying tank 14 



Intermittent filter 16. 17. 18-19, 21, 23, 25 



Irrigation, broad 15-18, 19 



Jerusalem, irrigation 15 



Latham, Baldwin 15 



Lausanne, irrigation 15 



Liquefaction 13-14 



Massachusetts State Board of Health 18 



Metropolitan Sewerage Commission l> 



Milan, irrigation 15 



Newport R. I. filters 21 



New York City, sewage disposal 5, 6-11, 25 



Nitrification, sewage 6. 14, IS. 20. 21. 23 



Oxidation (See nitrification) 2, 20. 21 -23, 25 



Paris, sewage farming 1 7 



Percolating bed (trickling filter: 2, 20, 21-23, 



25 

 Phelps. Prof. E. B. 25 

 Rideal, S. 25 



Sand filter 16, 18-19, 20. 21, 23, 25 

 Screening 9, 10. II 

 Sedimentation 11-12. 13, 14, 23, 25 

 Scplic tank 13-14, 23, 24, 25 

 Sewage, amount per day from New York 

 City 5, 6 



analysis 5 



chemical changes in 11, 12. 13. 14 



decomposition (i 



farming (See irrigation) 



utilization of 13, 15-18, 19 

 Sewage plants in England 10. 11, 12, 13, 17 

 20, 22, 23 



in the United States 2. 16. 20. 21. 22. 

 23, 24 

 Sewerage construction, beginning of 15 

 Shellfish industry s, 25 

 Sludge problem 12-13, 14 

 Sprinkling lied (trickling filter) 2, 20, 21-23, 



25 

 Tank, detritus 9, 1 1 



lmholl' liquefying 14 



sedimentation 11. 12. 13. It 



septic 13-14. 23. 24, 25 

 Trickling filter 2. 20. 21-23, 25 

 Typhoid lever 8 

 United States, sewage purification 2. 16. 18 



19. 20, 21, 22, 23. 24, 25 

 "Waring, Colonel Geo. E. 21 

 Water, purification of sewage by (>. 11 15, 

 18, 25 



27 



