  We show for g > 6 that the second homology group of the Torelli group of a
surface of genus g and 1 boundary component is generated as an Sp(2g,Z)-module
by the image under the stabilization map of the second homology group of the
Torelli group of a surface of genus 6 and 1 boundary component. In the process
we also show that the quotient of the complex of arcs with identity permutation
by the Torelli group is (g-2)-connected, for one or two boundary components.
