No.	Title	Date
1	An advanced Hausa reader with grammatical notes and exercises
2	Die Hausasprache : grammatik (Deutsch) und systematische geordnetes Wörterbuch : Hausa-Deutsch-Französisch-English
3	Hausa grammar : with exercises, readings, and vocabularies
4	A Hausa reading book : containing a collection of texts reproduced in facsimile from native manuscripts, arranged for the use of beginners and advanced students, with transliterations into Roman characters, translations, notes, &c.
5	Lehrbuch der Hausa-Sprache.