On Aug 25, 2008, at 12:26 PM, Harry Veeder wrote:

could that be frost?


Could be, but it seems to me unlikely, given there is no frost on anything else. A very light morning frost does occur on the ground there at times. If anything, the "before" picture looks like the ground is lighter, so it should have the frost.

Best regards,

Horace Heffner

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