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[Blank Page] [Start page] 29 [fifty?] feet above the valley- 75000 years ago, it was the valley bottom. This is the least length of time I can make for the removal of 50 feet from this valley. It is, probably, much longer even: for the rock, here in the valley bottom, like the rock in the lower parts of all valleys, is covered deep beneath alluvial gravel and drift; so that, for many milleniums, erosion has ceased. Not a particle of deepening has taken place in this valley, since the Glacial Epoch-50000 years ago. All the valley deepening took place before. [End Page]
Transcription Notes:
(number 29 is indistinct but last page was 28)