sentences:  Kayserling was a member of the Royal Academy in Madrid and of the Trinity Historical Society.Kayserling contributed to the different Jewish magazines published in Hebrew, German, English, and French; he also issued a new revised edition of Hecht's "Handbuch der Israelitischen Geschichte" (1874; 7th ed., 1901).From 1884 he prepared the part of the "Jahresberichte der Geschichtsforschung" (Berlin) which treated Jewish history.