IIthe balloons in The Last Man. One of these included the Minerva, by a Mr. Robertson (Vienna 1804). Robertson's optimistic prospectus reads in part, "There is no limit to the science and the arts, which cultivation does not overstep. We have everything to hope and to expect from time, from chance, and from the genius of man." Robertson's plan involved sending up a team of sixty passengers to conduct experiments and make scientific observations (not unlike an orbital mission today). In the larger image various machines and attached devices are visible, including a lifeboat, storage tanks, silk ladders, and an observatory.
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