Is this doable? Here's my graph: struct NodeProperties { map<string, string> Properties; }; struct EdgeProperties { map<string, string> Properties; }; typedef adjacency_list<vecS, vecS, directedS, NodeProperties, EdgeProperties> BipartiteGraph; So I'm using vecS for the vertexlist, so I should be able to access them by index right? -- William Yun Chen '09 Hinman Box 1826 Dartmouth College Hanover, NH, 03755