Description: Although initially skeptical about the effectiveness of the hypsometer, Secretary Joseph Henry soon recognized the value of the instrument, which he discovered from his colleagues in the scientific field.
Description: On May 16, 1929, an exhibition of American Negro Artists opened on the ground floor of the Smithsonian’s US National Museum building. The exhibition featured fifty-one works by twenty-seven black sculptors and painters who won a juried competition sponsored by the Harmon Foundation.1Though the work selected remained distant from the most radical new work being created by