________________ Introduction sub-chapter (pada) the work is called Abhidharma-dipa." But in two places (p. 347 and p. 429) it is called Abhidharmapradipa, which may be an unauthorized improvement by the scribe. We shall, therefore, call the work Abhidharma-dipa and not pradipa. The karika text, namely the Abhidharma-dipa closely follows, both in the contents and in presentation, its counterpart, the Abhidharma-kosaa of Vasubandhu. The latter divides his work into eight Kosa-sthanas and adds a ninth Kosasthana, viz., the Pudgala-nirdesa, more or less as an appendix. The Abhidharma-dipa,: too, is divided in eight chapters called Adhyayas, but unlike the Kosa, it subdivides each Adhyaya into four padas. As the MS. discovered is incomplete, we are not certain whether the Dipa too had a ninth Adhyaya corresponding to the ninth Kosa-sthana. Most probably the Dipa had not, for it is not referred to anywhere, even in the relevant parts of the work. 4 The eight Adhyayas deal with the following topics in order as in the Kosa :- . I. Skandha-ayatana-dhatu. II. Indriya. III. Loka-dhatu. IV. Karma. V. Anusaya. VI. Marga. VII. Jnana. VIII. Samadhi. The Adhyayas in the Dipa are not named in the manuscript, but merely numbered. The seventh Adhyaya, however, is named at the end of its fourth pada as Jnana-vibhaga. The number of the karikas found in the extant Dipa is 597. Of these 11 karikaso have lost either the first tow (a 1. See Adv. p. 14 etc. 2. Henceforth called Kosa or Ak. 3. Henceforth called Dipa or Ad. 4. See Adv. p. 158, n. 1. 5. 87, 129, 130, 158, 383, 396, 425, 437, 481, 488, 547.