MS. Eng. lett. c. 536/1 (foliated 1-111) and MS. Eng. lett. c. 536/2 (foliated 112-209) comprise correspondence, mainly with Oxford University Press, about The Poets' Life of Christ, and about a possible reprint of it, with (fols. 61-111) leaves found loose in MS. Eng. poet. d. 225 and (fols. 112-209) cuttings containing Ault's letters to periodicals on various literary subjects, with related drafts and correspondence.