{"collection":"aor","html_url":"https://unchartedknowledge.5gfusion.net/browse/aor/dv/0646.htm","path":"aor/dv/0646.htm","source_url":"https://sacred-texts.com/aor/dv/0646.htm","text":"The Da Vinci Notebooks\nPowder gall nuts and let this stand 8 days in the white wine; and in the same way dissolve vitriol in water, and let the water stand and settle very clear, and the wine likewise, each by itself, and strain them well; and when you dilute the white wine with the water the wine will become red.","title":"Vol. I: IX. The Practice of Painting: 646.","type":"page"}