PLATE N°-4. 



Sta.N°-2,--- --O 



Sta. N°6 n 



Inst, near Sta. N° 6, A 



.# 



•13' 



\y 



Q.' 



'/3A 



7 JF 



T. f»ER S£C . 





Q. B 



Op 



SCALE, 



Ordinates are ACTUAL heights 

 Abscissas, j+foot^ ifoot per sec. 



'Ox 



0*. 



ifo 



\ 



