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Owen, D. Dale (1846). ‘Geological Chart of the Ohio Valley to accompany Dr. Dale Owen’s Paper’ in ‘On the Geology of the Western States of North America’, extract from QJGS
Owen, D. Dale (1846). ‘Geological Chart of the Ohio Valley to accompany Dr. Dale Owen’s Paper’ in ‘On the Geology of the Western States of North America’, extract from QJGS
Owen, D. Dale (1846). ‘Geological Chart of the Ohio Valley to accompany Dr. Dale Owen’s Paper’ in ‘On the Geology of the Western States of North America’, extract from QJGS

Owen, D. Dale (1846). ‘Geological Chart of the Ohio Valley to accompany Dr. Dale Owen’s Paper’ in ‘On the Geology of the Western States of North America’, extract from QJGS

Geological Society of London

Owen, David Dale (1846). ‘Geological Chart of the Ohio Valley to accompany Dr. Dale Owen’s Paper’ in ‘On the Geology of the Western States of North America’, extract from Quarterly Journal of the Geological Society, v.2, n.8, pp.433-447. Hand coloured fold out map, 1:450,000 approx. 22.5 x 29cm. in very good condition. Some pages of text are uncut. In very good condition.

The ‘Western States’ are in the context of the extent of the USA in the 1840s.