'ERSITY OF TORONTO 



NT OF CIVIL ENGINEERING 



ipr. I and Structural 



PREFACE TO FIRST EDITION 



THE following pages represent, except for some necessary 

 minor changes, a course of lectures given in the College of Civil 

 Engineering, Cornell University. 



The course is an elective one, intended for those students 

 whose intention to enter the field of Sanitary Engineering 

 calls for more special and detailed work than is required of all 

 Civil Engineering students. Supplementing as it does the 

 regular course in Sanitary Engineering, it must preserve with- 

 out duplication a continuity in the two courses which is obtained 

 through the direct supervision of the Dean of the College, 

 Professor E. A. Fuertes, who also gives the general course. 

 These conditions may serve to explain some recognized peculiar- 

 ities and omissions in the subject-matter of the following pages, 

 tolerated only on account of the general work already done by 

 students here specially studying that in which they wish to 

 excel. 



Another cause, leading to the omission of certain discus- 

 sions which might properly be brought up under the title 

 chosen, lies in the fact that the lectures here given represent 

 but one-third of the year's work, the subjects of Sewage Dis- 

 posal and Sewer Construction being taken up in the other two 

 terms of the year. 



Thus, merely to serve the divisions of the college year, all 

 questions of constructive design and field construction are 

 remanded to another course of lectures not conveniently included 

 here. 



It is believed that due acknowledgment has been made 

 to the various books and periodicals and to the reports of the 

 prominent engineers from which this monograph has been 



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