(Boulder, CO: 1969). First edition. Edited by Jack Collom. Inscribed by Berrigan on a preliminary leaf: "Ted Berrigan / I break through into The [underscored] - my now close friend Jack Collom - who had thought me maybe 'frivolous'?". In addition to Berrigan, contributors include Larry Eigner, Vito Acconci, Carol Berge, and Dave Scheidel. 4to, original illustrated wrappers, stapled as issued. Lightly dust-soiled, otherwise a fine copy.