Part of the provision storehouse was used as the post hospital from about 1815 until it was razed and rebuilt in 1827. This objective lens from a microscope was used by one of the physicians who served during that time. The most famous was Dr. William Beaumont. Beaumont began his groundbreaking observations of human digestion here in 1822, when Alexis St. Martin, a voyageur, was accidentally shot in the stomach at close range. Although Beaumont saved St. Martin’s life, the wound never entirely closed and Beaumont was able to use the opening to perform digestive experiments. Unfortunately, this lens was found in an undatable mixed context.
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