CHAPTER IX 



SEPTEMBER 



The Tay in Flood How Rain Differs from Melted Snow 

 Soot Film on a Loch Where to Cast? Bays of 

 Two Kinds An Ideal Bay Why It is Good Floods 

 Which are too Fierce Waste of Water How that 

 can be Prevented. 



IF only the harvest had been completed 

 when the rains began, the valley of the 

 Tay would have been a place of un- 

 qualified delight this month. The river 

 has been constantly in flood. What that 

 means can hardly be realised by those 

 who are familiar with small streams only. 

 A rise in these waters is measured by 

 inches ; but a rise in the Tay is a matter 

 of feet, or even of yards. When there is 

 a flood of between three and four yards 

 miles upon miles of the valley become a 

 lake ; that is what happens once or twice 



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