ERCHIN 15 (28 Sivan) - dedicated to the memory of Hagaon Rav Yisroel Zev (ben Rav Avrohom Tzvi) Gustman, ZT'L, Rosh Yeshiva of Yeshivas Netzach Yisrael-Ramailes (in Vilna, Brooklyn, and then Yerushalayim), author of Kuntresei Shi'urim, and renowned Dayan in pre-war and post-war Vilna, in honor of his Yahrzeit (28 Sivan). Dedicated by Talmidim who merited to study under him in Yerushalayim: Harav Eliezer Stern of Brooklyn NY, Rav Avraham Feldman, Rav Mordecai Kornfeld, Yechiel Wachtel, Michoel Starr and Dr. Yehoshua Daniel of Yerushalayim