Now in complete control of the Firm, Morris took an increased interest in the process of textile dyeing and entered into a co-operative agreement with Thomas Wardle, a silk dyer who operated the Hencroft Works in Leek, Staffordshire. As a result, Morris would spend time with Wardle at his home on various occasions between summer 1875 and spring 1878. Deeming the colours to be of inferior quality, Morris rejected the chemical aniline dyes which were then predominant, instead emphasising the revival of organic dyes, such as indigo for blue, walnut shells and roots for brown, and cochineal, kermes, and madder for red. Living and working in this industrial environment, he gained a personal understanding of production and the lives of the proletariat, and was disgusted by the poor living conditions of workers and the pollution caused by industry; these factors greatly influenced his political views. After learning the skills of dyeing, in the late 1870s Morris turned his attention to weaving, experimenting with silk weaving at Queen's Square.