Part I of M. Jourdain's article describes the lace collection of Mr. Arthur Blackborne, some six hundred specimens begun in 1850. It discusses lacis (darned net), its terminology, pattern books such as Vinciolo and Parasole, and the symbolism of motifs like peacocks at a fountain. It then covers cutwork and punto in aria and gives numbered catalogue entries (Nos. 1-21) for lacis, cutwork, needlepoint, and Italian and English pillow laces. Four plate pages show photographs of selected specimens.