Journal of electricity, power, and gas . in the first six months of the year.(Where the curve is vertical, it indicates that noth-ing is being added to what has already passed.) Meas-ured by our former standard of uniformity, i. e., theratio of the minimum to the maximum, we find theuniformity factor for Blitzen River was .075, and ofSilvies River .00079; that is, the uniformity of BlitzenRiver, without forests, is 100 times greater than theforested Silvies River. The principal reason for thislies in the fact that the Blitzen area is cut into gulliesand canyons into which enormous quantities o
Journal of electricity, power, and gas . in the first six months of the year.(Where the curve is vertical, it indicates that noth-ing is being added to what has already passed.) Meas-ured by our former standard of uniformity, i. e., theratio of the minimum to the maximum, we find theuniformity factor for Blitzen River was .075, and ofSilvies River .00079; that is, the uniformity of BlitzenRiver, without forests, is 100 times greater than theforested Silvies River. The principal reason for thislies in the fact that the Blitzen area is cut into gulliesand canyons into which enormous quantities of snoware drifted each year. These melt gradually and keepup the flow. If the area were timbered, a great dealof this drifting would be prevented and it is not likelythat so great a uniformity would obtain. Certain it isthe differences of soil and topography can never ac-count for this great difference in flow. It is also seenthat the yield per square mile of the Blitzen River isover twice that of the Silvies. The effect of dissipation. Percent D/sc/raryea/ Jon N FeS rtor /?w \^ \^ Mat June \ ^ ?O \-*. July \<^_ ^ v? f)ug \i vs r Sep x ^ \<» Ul Oct ^\ V \ }) ftov \® « Jo/7 Cb ^ t \ .w Feb N \^\- \ Mar \ \® \ }^ Fpr \ X**, /fay * >. June ^ NT Ju/v \\ \ /fo9 \\ \ Sep v\l Oct \\ Nov Dec * J a 4> C ^ c> c > Percent D Scharg e c/ V^ Jan ON \\^ V /fuo -V \^s Sepfi S\ Oct ^V /*>„ \V Dec -i\ ^ Jon Ci do sv v^li Kb \ \? x3 rtor \V ?r*. fipr \ ^p \ V^( V-\ May ^ \(» June \ \?A Ju/y \ \X\ Sfuq \\\ <5V \ Oct A A/ov Dec 2 o o CO o /^ercenf D/o~chc*r-jGc( Fig-. 6. Fig. 7. Fig. Mass Curves of Monthly Runoff, February 28, 1914.] JOURNAL OF ELECTRICITY, POWER AND GAS 191 of water in this semi-arid region by forests is materialin this case; however, it is doubtful if it will accountfor this difference in total yield. I do not contend, by any means, that this differ-ence in flow characterist
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