You might like to know that Jayawickrama's classic study of the Sutta
Nipata is available in print. It is an excellent book (2001) for those
interested in the early Buddhist texts.
Jayawickrama, N[icholas] A[beydeera]
1943
A Critical Analysis of the Sutta Nip?ta illustrating its gradual growth
[Univ of London doctoral thesis] serialized in University of Ceylon
Review 1943 47 (Jan 1948 to Apr 1951), Pali Buddhist Review 1:75 ff, 136
ff, 2:14 ff, 86 ff, 141 ff, 3:3 ff, 45 ff, 100 ff. One of the most
important modern studies of Sn.
2001
Suttanipaata: Text and Translation. [Orig PhD thesis, "A critical
analysis of the Paali Suttanipaata illustrating its gradual growth." U
of London, 1947. See 1943.] University of Kelaniya: The Post-Graduate
Institute of Pali & Buddhist Studies, 2001. 435 pp pb.