No.	Title	Date
1	Dictionary of the Hausa language : Vol. 2, English-Hausa
2	Dictionary of the Hausa language : Vol. 1, Hausa-English
3	Dictionary of the Hausa language : Vol. 2, English-Hausa
4	Dictionary of the Hausa language : Vol. 1, Hausa-English
5	Hausa folk-lore, customs, proverbs, etc. collected and transliterated with English translation and note : in two volumes, vol. 1
6	Hausa folk-lore, customs, proverbs, etc. collected and transliterated with English translation and note : in two volumes, vol. 2