Sefer HaShl”a by Rabbi Yeshayahu HaLevi Horowitz av”d Posen. Four volumes in a small format [19 cm.], including ethical rebuke, admonition, behaviors, laws, customs, sermons, elucidations and prayer. Lengthy preface by the author’s son, Rabbi Shabtai Sheftel. Unknown edition, not listed bibliographically and not in the National Library. Volume 1: [3] 246 leaves. Volume two: [1] 234 leaves. Volume 3: 272 leaves. Volume 4: 186, 74 leaves [with separate title page for Vavei Ha’amudim]. Nice bindings with gilt on their sides, very fine condition.