Barnard, J. G.

Problems of rotary motion presented by the gyroscope, the precession of the equinoxes, and the pendulum

Washington: The Smithsonian Institution, 1871. 4to, pp. 52, [2]; original green printed paper wrappers; upper wrappers loose, but present, lower wrapper wanting; spine perished, text clean. Smithsonian Contributions to Knowledge volume. 19. John G. Barnard was a career army engineer who cultivated a circle of some of the most influential scientists and publishers of the time (A Century of Book Publishing, 1948). Sabin 85072. Item #58165

Price: $50.00