 Talmudic studies, however, occupied the greater part of his time, and during the years that he spent in his parents' home he wrote several pamphlets containing novellæ on Talmudic tractates, as well as on the "Shulḥan 'Aruk", "Yoreh De'ah" and "Ḥoshen Mishpaṭ".He also kept up a correspondence with many distinguished rabbis, particularly Joseph Saul Nathanson, and contributed to Stern's "Kokebe Yiẓḥaḳ" and to Kobak's "Jeschurun.