French encyclopedia entry on tulle, the light machine-made net used as imitation lace. It covers the mesh types (ordinary, Malines, Brussels), the history from William Lee's 1586 stocking frame to the introduction of the industry at Calais in 1816, and the later bobbin-net and Jacquard machines. It also describes how the net is formed from warp and oblique bobbin threads, the workers and wages at Calais, the main production centres in France, England and Belgium, and 1900 export and import figures.