Deceptively simple in appearance, Northwood II is in fact a complex, engineered system of weights and counterweights. Three pairs of parallel steel bars, identical in length, are held together by wire cables, creating a delicate push-pull tension. Although the work comprises a minimal number of components, each part is necessary for the whole to exist.
Karin Dienst, ed., Sculpture of Princeton University: including works from the John B. Putnam Jr. Memorial Collection, (Princeton, NJ: Published by the Office of Communications, in association with the Princeton University Art Museum, 2004).
Jane McCarthy and Laurily K. Epstein, A guide to the sculpture parks and gardens of America, (New York, NY: Michael Kesend Pub., 1996).
Patrick Joseph Kelleher, Living with Modern Sculpture: the John B. Putnam, Jr., Memorial Collection, (Princeton, NJ: Princeton University Art Museum, 1982).
Miriam Friend, "Modern sculpture turns campus into outdoor art museum", Packet magazine (Aug., 1971): p. 1321.
John M. Fenton, "The Putnam sculptures," Princeton alumni weekly 71, reprint (December 14, 1971).