A practical treatise on the manufacture of worsteds and carded yarns: comprising practical mechanics, with rules and calculations applied to spinning; sorting, cleaning, and scouring wools; the english and french methods of combing, drawing, and spinning worsteds and manufacturing carded yarns / translated from the french of Charles Leroux mechanical engineer and soperintendent of a spinning mill. By Horatio Paine, M. D., A. A. Fesquet, chemist and engineer. Illustrated by twelve large plates. To which is added an appendix, containing extracts from the reports of the International jury, and the artisans selected by the committee appointed by the council of the Society of Arts, London, woollen and worsted mechinery and fabrics, as exhibited in the Paris Universal exposition, 1867