The first three days of artist Patrick Dougherty's residency at Carleton were devoted to gathering materials which he will transform into sculpture. On Wednesday, Thursday and Friday, a team of gallery, Arboretum, and Grounds staff, and volunteers from Carleton, St. Olaf, Northfield and elsewhere went into the Cowling Arboretum to harvest willow and buckthorn. The willow was gathered from a single plant, or clone, growing on the floodplain of the Cannon River. Buckthorn, thorny and now ripe with berries, was cut as part of an eradication program. This highly invasive species must be eliminated before Oak savannah can be restored in certain sections of the Arb. The third species which Dougherty will weave into his work is Dogwood or Red Osier.