Fourth volume of Madame Hardouin's album of Irish guipure crochet lace, with photographs and written crochet instructions in French for numbered motifs (Nos. 61-77). Motifs include sweet peas, a field butterfly, jonquil, hyacinth, sun, palm, hazelnuts, lizard, water lily, iris, bindweed and a Brazilian butterfly, meant as appliqués for clothing and collars. The final section gives filet (net) insertions (entre-deux) with Irish guipure appliqués: the rose, cyclamen, violets, an Empire design and a Japanese design. A preface advises on thread (M.F.A. Irish thread, L.V. cord) and refers readers to earlier volumes for basic stitches.