A French-language notice on woad (Isatis tinctoria) by Jean-Pierre-Casimir Marcassus, Baron de Puymaurin, extracted from his 1811 "Instructions pratiques" and republished online by Philippe Demoule of the CVMT. It covers choice of soil, sowing, weeding, harvesting and the making of woad paste (coques) with its long fermentation before it reaches the dyer's vat. It also describes the Corfu peasant method of dyeing wool with fermented woad, and experiments and processes for extracting indigo from woad (Astruc, Dambourney, Gréene) and from anil in Java and Malta.