Douro River, Portugal
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Botanical studies of grape vines Vitis vinifera. Eight figures, including sections through roots, trunk growth, mode of grafting, one year’s wood and leaf. From the Douro wine region of Portugal. Original illustration from the manuscript version of the paper ‘On the vine-disease in the port-wine districts of the Alto-Douro in April 1854. With a supplementary note on the proposed remedies for its eradication’, by J.J. Forrester. Proceedings of the Royal Society of London, vol.7 (1854), pp.156-164.