404 JOURNAL OF FORESTRY 



The rate for this day was increased 44.6 per cent by early snow 

 melting induced by denudation. 



{b) Bud of flood on A (July 13) ■' 



Under the conditions of subsidence of the flood the most probable 

 discharge of stream B for the end of the flood (3 days, including one 

 before and one after the last technnical day) would be .0421 ins. O. W. 



The actual discharge was .0443 ins. O. W. 



The stream was still 5.4 per cent higher than it probably would 

 have been under the influence of forest. 



(c) Crest day on stream A: 



Under the conditions leading up to the crest of the flood, the dis- 

 charge of stream B, on the highest day for A, should have been 

 .22G5 ins. O. W. 



The actual discharge was .3105 ins. O. W. 



At this point the rate of discharge was 36.9 per cent higher than 

 under forest conditions. 



{d) Time elapsing hetzueen crests: 



Under forest conditions the crest of B was always somewhat later 

 than that on stream A. 



Under the conditions in 1920 it should have been, and ivas, one day 

 later than the crest on A. 



It would seem, then, that while earlier melting on watershed B had 

 produced a relatively large early flow, the time of maximum melting 

 was not appreciably affected. 



{e) Relative height of B crest: 



Considering the height of stream B on the crest day for A, it is 

 found that on its own crest day (the day following) stream B is de- 

 pressed about 5 per cent. This is the first evidence of any reduction 

 in the supply to stream B resulting from early discharge. 



(/) Total volume in flood: 



The most probable total volume to be discharged by stream B, con- 

 sidering the character of the flood, was 5.195 ins. O. W. 



The actual volume discharged was 5.946 ins. O. W., or a gain of 

 14.5 per cent. It is thus evident that greater flow in the early stages 

 of the flood was not compensated by decreased flow in the later stages. 

 In fact, we have already shown that at the end of the flood stream B 

 was still 5 per cent high. 



