Umar-Falke collection, [microform]Arabic and Hausa manuscripts from northern Nigeria and the Western Sudan/Sahel. Included are poems, journals and religious works by Falke, as well as works on Islamic learning collected by him. The collection contains material on Islamic science, Maliki law, jurisprudence, Prophetic traditions (hadith), theology, literature and grammar, and protective medicine and the secret arts (asrar).