Anonymous2008-06-192008-06-191954https://hdl.handle.net/1920/3089Color (green, black, gray, white) illustration, 9.1" x 6.1" (23.11 cm x 15.49 cm)Cover art featuring photograph of John N. Warfield (right) and H. I. Tarpley at the controls of an analog computer in the Electrical Engineering lab at Pennsylvania State University. John N. Warfield Collection 3.16en-USWarfield, John N.Analog computerImage