HYDRODYNAMICS. 



523 



T.Kc hf 



Tables fur 



Du Buat'* 

 formula. 



TABLE I. comtittttetL Falun o/'^tHyp.Log.^s+l.6 Me Denominator of the Fraction 



y Value of the Slope i. 



.1) 

 -=== thendcu!:'.- 



S Hyp. Log. v^*+ 1 -6 lion fr.i 

 Du Bunt's 

 Formula. 



TABLE II. 



Fahtet of the Numerator 307( v /* 0.1 )for etcry Value of tie Hydraulic Mean Depth d, calculated for Pipet, 

 from $ of an inck to 18 Intfiei Diameter ; alto the t'alite of the Factor 0.3( v/</ 0.1). 



