 Capucins" (The Hague, 1764), the "Conférence entre un Juif, un protestant et un docteur de Sorbonne" (Leyden, 1770), the "Notæ criticæ in universos Veteris Testamenti libros tum hebraice tum græce scriptos, cum integris Prolegomenis ad exemplar Parisiense denuo recensæ" (2 vols., 4to, Frankfort, 1777), are evidence that Houbigant had not at this period abandoned his favourite studies.Some time before his death, however, he had lost his eyesight and fallen into dotage.Among the papers found after his death were a life of Cardinal de Bérulle, a treatise on the coming of Elias, a Hebrew grammar, and notes on the theory of Astruc touching the composition of Genesis.