UNIVERSITY OF VIRGINIA PUBLICATIONS 



BULLETIN 



OF THE 



PHILOSOPHICAL SOCIETY 



Scientific Series, Vol. I, No. 10, pp. 243-265, June, 1912 



Tlie Flow of Water in Aatiiicial Channels: 

 Clean Pipes 



BY 



WILLIAM H. ECHOLS 



UNIVERSITY or VIIIGINIA 

 CharlottesTiUe, Vireinia, XT. S. A. 



