While in Berlin he had begun to edit literary periodicals, the first of which was "Ha-Teḥiyyah," treating chiefly of medieval religious philosophy. Only two numbers were issued, the first in 1850 and the second in 1857. In 1850 Sachs edited also Zunz's "Ha-Paliṭ," an index of valuable Hebrew manuscripts, with biographical notes on some of the authors. Of his "Ha-Yonah" only one number appeared (Berlin, 1851); it contains among other things an article by Slonimski on the Jewish calendar according to the ancient Talmudists. Sachs then undertook to continue the publication of the "Kerem Ḥemed," editing vols. viii. (Berlin, 1854) and ix. (ib. 1856). His other works are: