Article by Mme. L. Paulis on the technique of the sixteenth-century bobbin lace designs in the pattern book "Le Pompe" (Venice, 1557), the earliest known pattern book for bobbin laces. She divides the designs into a geometric plaited group and a group of curving cloth-stitch designs, and explains how difficult crossings, loops and star motifs would be worked. She discusses accrochage, adding and removing threads, change of weavers, possible engraver's errors, and the close relationship between lace and passementerie. Illustrations include reproductions of pattern pages, explanatory diagrams and photographs of worked samples.