Letter from D. Lilienthal to Isaac Leeser;August 15, 1847Letter from D. Lilienthal to Isaac Leeser, written in New York City on August 15, 1847. Lilienthal discusses the progress of the Hebrew Union School, including its organization, curriculum (which encompasses religious instruction, Hebrew and English language studies, arithmetic, and other subjects), and disciplinary measures. He provides details about the school's structure, teaching methods, and plans for the future, including the establishment of a library. The letter includes a detailed outline of the school's constitution, particularly sections II and VIII, outlining the organization and structure of the elementary and mercantile polytechnic schools. The letter also references an earlier article in *The Occident* magazine.