Douro River, Portugal
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Botanical studies of grape vines Vitis vinifera. Nine figures, showing sections of vine from the Douro wine region of Portugal. Detail of an 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.