In fulfilment of the undertaking given by me on p. 387 of the J.R.A.S. for 1894, I submit the text of an unpublished Sutta from the Majjhima Nikāya dealing with the ‘marvels and mysteries’ of the Buddha's nativity. Buddhaghosa's commentary on the Sutta is also given, though the absence of MSS. for collation leaves the readings in many instances far from satisfactory to me. I hope in an early number of the Journal to have an opportunity of discussing the subject-matter in the light of the Lalita Vistara and the Nidāna-kathā of the Jātaka.