iv PREFACE TO FIRST EDITION 



prepared, and it is hoped that the collection and unification of 

 this scattered material may not only aid the students examining 

 the question of Sewer Design for the first time, but may also be 

 a convenient reference for older engineers who have hitherto 

 been obliged to put together the data from many publications. 

 Special acknowledgment is made to the published papers 

 of Emil Kuichling, C.E., of Rochester, N. Y., for the chapters 

 on Storm-water Discharge and Mathematical Formulae; to the 

 report of Dexter Bracket t, C.E., on the Future Water-supply of 

 Boston, Mass. ; to the thesis of Elon H. Hooker on Suspension of 

 Solids in Flowing Water; to the Hering & Trau twine Transla- 

 tion of Kutter for the chapter on Kutter's Formula, and for that 

 on the Development of the other and earlier Hydraulic Equa- 

 tions; to Hering's Report to the National Board of Health 

 for the chapter on Lateral Location; and to Baumeister for the 

 general arrangement of sewer systems. 



