Section U. 



SANITARY SCIENCE AND HYGIENE. 



Address by the President, 

 W. H. WARREN, Wh. Sc, 



M. Inst. C.E., M. Am. Soc. C.E., Challis Professor of Civil and Mechanical 

 Engineering, University of Sydney. 



"Sanitary Engineering, as applied to the Drainage 

 OF Cities and Towns, and the Disposal of Sewage 

 and other Refuse." 



It is my first duty to thank you for electing me President of 

 this important Section. I assure you that I fully appreciate 

 the honour you have done me, but am at the same time aware 

 of the responsibility involved in my acceptance of the position, 

 which includes, among other things, the delivery of an 

 address on some subject connected with Sanitary Science 

 and Hygiene. 



The eminent men who have presided over this Section 

 during former meetings have all belonged to the medical 

 profession, and their addresses were devoted to the following 

 subjects : — 



" Various Hygienic Aspects of Australian Life," by Dr. 

 Bancroft ; " The Practice of Preventive Medicine," by Dr. 

 Ashburton Thompson ; "The Advance of Sanitation among 

 the People," by the Hon. Dr. Campbell. My choice of a 

 subject upon which I may hope to interest you is necessarily 

 limited by the profession to which I belong, and Sanitary 

 Engineering is, therefore, the branch from which I must 

 select the subject of my address. Sanitary Engineering 

 embraces the methods for removing and safely disposing of 

 the various wastes, both liquid and solid, of domestic and 

 industrial life, and the construction of the necessary works 

 and appliances by which these may be accomplished. It has 

 for its object the production of such conditions of air, soil, 

 and water as shall be most congenial to the health of the 

 community. 



