Read it through once

[6] The same "woad" which was used by the Britons to paint themselves with. Now all these planters are ruined and the population is dispersed, because German indigo manufactured from coal-tar is destroying the sale of the British-grown material. The plant has pretty blue flowers and belongs to the _Leguminous_ order. The dye is obtained by steeping the leaves and young branches in water, and it is finally turned out in blue powder or cakes.