Diagram showing the different stages of black stem-rust disease—the kind that attacks the barberry bush. Date unknown.

Life cycle of black stem-rust disease

Diagram showing the different stages of black stem-rust disease—the kind that attacks the barberry bush. Date unknown.

Life jacket with Peanuts characters

Life jacket with Peanuts characters

Child's life jacket with zipper front, adjusting laces, and web belt, manufactured ca. 1965. Obverse is decorated with a lake scene and Peanuts characters Snoopy and Woodstock paddling a canoe.

Light blue glass trade beads

Light blue glass trade beads

Three opaque light blue pony beads made between 1700 and 1837.

Light mast at Bridge Square, Minneapolis

Light mast at Bridge Square, Minneapolis

Full view of the 257-foot electric light mast at Bridge Square, Minneapolis, c.1884.

Lighting the Paul Bunyan statue’s pipe

Lighting the Paul Bunyan statue’s pipe

Edith Ebringer of Bemidji and Dorothy Blanchard of Thief River Falls light the pipe of the Paul Bunyan statue in Bemidji, 1940.

Lighting tower at Bridge Square, Minneapolis

Lighting tower at Bridge Square, Minneapolis

Lower section of the electric light mast at Bridge Square, Minneapolis, ca. 1883. The first centralized hydroelectric power in the United States turned on in downtown Minneapolis on September 5, 1882.

Lighting tower at Bridge Square, Minneapolis

Lighting tower at Bridge Square, Minneapolis

Lower section of the electric light mast at Bridge Square, Minneapolis, ca. 1883. The first centralized hydroelectric power in the United States turned on in downtown Minneapolis on September 5, 1882.

Black and white photograph of the Duchess of Windsor, the former Wallis Simpson, and Philip Pillsbury sample the grand prize winning orange kiss-me-cake cake, 1951.

Lily Wuebel shares cake with the Duchess of Windsor and Philip Pillsbury

The Duchess of Windsor (Wallis Simpson) and Philip Pillsbury sample Lily Wuebel's grand-prize-winning entry, orange kiss-me cake, in 1951.

Limestone Bluff, Olmsted County Park, Simpson MN

Limestone bluff along the north branch of the Root River

Bluff seen from the north branch of the Root River in Olmsted County Park, south of Simpson, Minnesota. Photograph by Wikimedia Commons user Jonathunder, 2017. GNU free documentation license.

Color image of a limestone seam under Stone Arch Bridge, 2016. Photograph by Paul Nelson.

Limestone seam under Stone Arch Bridge

Limestone seam under Stone Arch Bridge, 2016. Photograph by Paul Nelson.

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