Title page to George Davidson's "The Submerged Valleys of the Coast of California....", in Proceedings of the California Academy of Sciences, Third Se

Title page to George Davidson’s “The Submerged Valleys of the Coast of California….”, in Proceedings of the California Academy of Sciences, Third Series, Vol.1, No. 2. This paper documented Coast Survey discoveries of submarine canyons beginning with the first ever discovered, Hueneme Canyon, in 1855. Monterey Canyon was the second, discovered in 1857.

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