CONTENTS ix 



CHAPTER XII 



KUTTER'S FORMULA 



PAGE 



Origin and Method of Construction; Diagram for Value of c; Diagram for 



Findings; Flynn's Tables, with Examples of Use; Colby's Slide-rule 175 



CHAPTER XIII 



SEWER DIAGRAMS 



Olive's, Staley & Pierson's, and FitzGerald's Based on Latham's Tables; 

 Hering's, Moore's, Talbot's, Bailey's, Adams & G^mmell's, and Hill's, 

 based on Kutter's Formula; Author's Diagrams 184 



CHAPTER XIV 



USE OF DIAGRAMS 



Example in Determining the Size of a Storm- water Drain for Ithaca; Example 



in Finding the Size of an Outfall for Separate System 190 



CHAPTER XV 

 SEWER PLANS 



Location of Outfall; Perpendicular System; Intercepting System; Zone 

 System; Fan System; Radial System; Lateral Disposition; Location of 

 Flush-tanks; Grade of Sewer-crown; Curve-resistance in Manholes; 

 Elevation of Flow-lines in Confluent Streams 195 



CHAPTER XVI 

 SEWER CROSS-SECTIONS 



Egg-shaped Sections; Advantage in Velocity Compared with Circular Pipes; 



Velocity at Different Depths 207 



CHAPTER XVII 



FLUSHING 



General Methods; Gates and Hand-flushing; Van Vranken Tank; Field- 

 Waring Tank; Rhoads- Williams Tank; Miller Tanks 213 



CHAPTER XVIII 

 USE OF TANKS 



Cost of Flush-tanks in First Cost and in Maintenance; Engineering Evidence 

 as to Value of Tanks; Theoretical Need for Tanks; Experimental 

 Studies in Ithaca; Conclusions 225 



