Summary

1911 Encyclopædia Britannica, Volume 26… (1911)

In many parts the current is impetuous, and in flood has occasionally wrought much havoc, certain of the inundations being historically important. Its mean discharge of water every minute is estimated to amount to 273,000 cubic ft., a larger outpour than that of any other stream in the United Kingdom. Vessels make Dundee at all stages of the tide, and the estuary is navigable to Newburgh by vessels of 500 tons, and as far as Perth by ships of 200 tons.
Source: Wikisource

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