This is the second volume of proceedings of the ?gama seminars convened by the ?gama Research Group at the Dharma Drum Institute of Liberal Arts (formerly Dharma Drum Buddhist College). On this occasion, the ?gama Research Group met to discuss the early collections of long discourses transmitted by the different Buddhist schools. Thanks to the discovery and ongoing publication of the incomplete Sanskrit D?rgha-?gama manu?script from Gilgit, three different versions of the Collec?tion of Long Discourses are now avail-able for comparative study: the Pali D?gha-nik?ya transmitted within the Therav?da tradition, the just-mentioned D?rgha-?gama in Sanskrit, identified as Sar?v?s?ti?v?da or M?lasarv?stiv?da, and the Chinese translation of an Indic D?rgha-?gama (長阿含經), generally considered to be affiliated with the Dhar?ma??guptakas. The six papers collected here focus on research on these various incarnations of the collections of long discourses in comparative perspective.