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from Volcano Island inward to Haining. The rise at Rambler then continued to be very rapid, while the water at Haining remained nearly stationary. This state developed until midnight, by which time the level had risen twenty-one feet at Rambler and about six feet at Volcano, but had not yet risen at all at Haining. Through all this interval the water was running down the river from Haining toward its mouth.

This state of strain represented by a difference in level of over twenty feet between Rambler outside and Haining only twenty-six