Pamphlet, white laid-paper covers printed in black and red, staple bound. 23 pages. Printed and bound at the Princeton University Press. Illustrated with black and white photographs. First edition, stated first printing. A copy of the address presented before The Newcomen Society in North America, in Chicago on March 17, 1977. No previous ownership marks. White covers moderately age soiled. A tight, sound, internally unmarked copy. Good.