Three-page extract of engraved plates from Diderot and d'Alembert's Encyclopédie, showing knots used in silk weaving (soierie) mills. The plates illustrate step-by-step knot diagrams in silk cords, including flat knots, lace knots, loop knots, and pelote knots, with numbered figures and lettered cord ends. A title page prepared by Philippe Demoule introduces the set as Part I of the weaving plates.