THE EAEMEE' S SHORT-BOX MEASURING FLUME. 



that the heads on the crest are not constant for the same upper- 

 gauge head, but vary with the height of weir, and therefore care should 

 be used to choose the proper column for the head. The discharge 

 values given are for a 1-foot width of flume. To find the discharge 

 for any width of flume it is only necessary to multiply the discharge 

 given in the table by the width of the flume in feet. These tables, 

 however, should not be used for flumes less than 1 foot or more than 

 4 feet in width. 



Table 2. — Free-flow discharges in cubic feet per second, per foot in ividth of farmer's short- 

 box measuring flumes. 



[Computed from theforinula Q= 



3.566 



(P-0.300)('-<»64 



Xi?1.525.] 







2 by 4 inch 



2 by 6 inch 



2 by 8 inch 



2 by 



2 inch 



2 by 16 inch. 







weir, 0.307 feet 



weir, 0.450 feet 



weir, 0.594 feet 



weir, 0.907 feet 



weir, 1.203 feet 







high. 



high. 



high. 



1 high. 



high. 



Upper gauge 















1 









head. 



























Head 



Dis- 



Head 



Dis- 



Head 



Dis- 



Head 



Dis- 



Head 



Dis- 







on 



crest. 



charge. 



on 

 crest. 



charge. 



on 

 crest. 



charge. 



on 

 crest. 



charge. 



on 

 crest. 



charge. 



Feet. 



Inches. 



Inches. 



Sec. -ft. 



Inches. 



Sec. -ft. 



1 

 Inches. 



Scc.-ft. 



Iitches. 



Sec. -ft. 



Inches. 



Sec. -ft. 



0.20 



2f 



2J 



0..33 



2tV 



0.32 



"^ 



0.31 



2^ 



0.31 



2A 



0.31 



.21 



2i 



2i 



.36 



2A 



.34 



2A 



.34 



2i 



.33 



24 



.33 



.22 



2? 



2A 



.38 



2A 



.37 



2i 



.36 



2i 



.36 



2} 



.35 



.23 



2f 



2A 



.41 



2| 



.39 



2f 



.39 



21 



.38 



2| 



.38 



.24 



2i 



2A 



.44 



2i 



.42 



21 



.41 



2A 



.41 



2^ 



.41 



.2.5 



3 



2H 



.47 



2* 



.44 



2f 



.44 



2A 



.43 



% 



.43 



.26 



3i 



2| 



.50 



2H 



.47 



2H 



.47 



2? 



.46 



2-S 



.46 



.27 



3i 



2| 



.53 



2« 



.50 



2H 



.49 



2J 



.49 



2| 



.48 



.2S 



3^ 



3 



.56 



2H 



.53 



m 



.52 



21 



.52 



2J 



.51 



.29 



3i 



3J 



.59 



3^ 



.56 



3 



. 55 



m 



.54 



2H 



.54 



.30 



3| 



3A 



.62 



3i 



.59 



3i 



.58 



3tV 



.57 



3n^ 



.57 



.31 



P 



3A 



.65 



3i 



.62 



3A 



.61 



3A 



.60 



34 



.60 



.32 





3t^ 



.68 



34 



.65 



3A 



.64 



3i 



.63 



H 



.63 



.33 



3x1 



3i 



.71 



3A 



.68 



3A 



.67 



3J 



.66 



31 



.66 



.34 



4tV 



3| 



.75 



3A 



.71 



Z\ 



.70 



34 



.69 



3-!^ 



.69 



.35 



^ 



31 



.78 



3H 



.74 



3? 



.73 



3A 



.73 



3A 



.72 



.36 



^ 



3il 



.82 



3i 



.78 



3| 



.77 



3U 



.76 



35 



.75 



..37 



^ 



3il 



.85 



31 



.81 



3-U 



.80 



3f 



3| 



.79 



31 



.78 



.38 



4A 



4^ 



.88 



4 



.84 



3-H 



.83 



.82 



31 



.82 



.39 



4H 



4A 



.92 



4t»j 



.88 



^ 



.87 



4 



.86 



3-H 



.85 



.40 



iH 



4i^. 



.96 



4tV 



.91 



4J 



.90 



4t\ 



.89 



4^ 



.88 



.41 



4H 



4| 



.99 



4A 



.94 



4i 



.93 



4A 



.92 



44 



.92 



.42 



^ 



^ 



1.03 



4| 



.98 



4| 



.97 



4^ 



.96 



44 



.95 



.43 



5A 



41 



1.07 



4i 



1.02 



44 



1.00 



45 



.99 



4? 



.99 



.44 



5i 





1.11 



4- 



1.05 



4^ 



1.04 



44 



1.03 



^ 



1.02 



.45 



of 



4i"i' 



1.14 



4H 



1.09 



4H 



1.08 



4-1 



1.06 



4^ 



1.06 



.46 



5| 



411 



1.18 



4il 



1.12 



4f 



1.11 



4H 



1.10 



m 



1.09 



.47 



5« 



5 



1.22 



41i 



1.16 



4J 



1.15 



4-H 



1.14 





1.13 



.48 



51 



5J 



1.26 



5 



1.20 



4}* 



1.19 



41 



1.17 



4| 



1.17 



.49 



5| 



5J 



1.30 



5J 



1.24 



5l»5- 



~ 1.22 



5 



1.21 



5 



1.20 



.50 



6 



5f 



1.34 



5i 



1.28 



5A 



1.26 



5tV 



1.25 



&iV 



1.24 



.51 



6J 



5J 



1.39 



5i^ 



1.32 



5i 



1.30 



5A 



1.29 



^'TB' 



1.28 



.52 



6} 



5A 



1.43 



&3V 



1.36 



5? 



1.34 



•5A 



1.33 



54 



1.32 



.53 



m 



51i 



1.47 



5t5 



1.40 



5i 



1.38 



55 



1.37 



5f 



1.36 



.54 



6i 



5H 



1.51 



5H 



1.44 



5,^ 



1.42 



54 



1.40 



5i 



1.40 



.55 



6* 



&il 



1.55 



51 



1.4S 



5H 



1.46 



5f 



1.44 



5^ 



1.44 



.56 



6| 



6 



1.60 



5i 



1.52 



5« 



1..50 



m 



1.48 



5H 



1.48 



.57 



en 



6i 



1.64 



5H 



1.56 



51 



1.54 



5H 



1.53 



5! 



1.52 



.58 



m 



6i 



1.69 



&>V 



1.60 



6 



1..59 



5Vi 



1.57 



5i 



1.56 



.59 



7tV 



6f 



1.73 



6A 



1.64 



6i 



1.63 



6 • 



1.61 



6 



1.60 



.60 



7A 



&A 



1.78 



^ 



1.69 



6A 



1.67 



6* 



1.65 



6-rV 



1.64 



.61 



7A 



&A 



1.82 



&h 



1.73 



6t^ 



1.71 



6A 



1.69 



6A 



1.68 



.62 



7A 



6« 



1.87 



^ 



1.77 



61^ 



1.75 



6A 



1.73 



64 



1.72 



.63 



7-h 



6H 



1.91 



6| 



1.82 



64 



1.80 



6t^ 



1.78 



6| 



1.77 



.64 



Hi 



61 



1.96 



6H 



1.86 



6S 



1.84 



6i 



1.82 



64 1 



1.81 



.65 



7-5-f 



7 



2.01 



m 



1.91 



6| 



1.89 



&ftr 



1.86 



6A ! 



1.85 



.66 



l^ 



7| 



2.05 



m 



1.95 



m 



1.93 



6H 



1.91 



644 1 



1.90 



.67 



SiV 



7i 



2.10 



7tV 



2.00 



6« 



1.98 



(HI 



1.95 



65 



1.94 



.68 



SA 



71 



2.15 



7J 



2.04 



7t^ 



2.02 



6| 



2.00 



64 i 



1.98 



.69 



SJ 



7A 



2.20 



7i 



2.09 



74 



2.07 



7 



2.04 



7 1 



2.03 



