Description
an astronomical demonstration
to illustrate the author's description of the simplest type of spectroscope
A Feather of the Cassowary
royal godmother
Northern Line Packet Company paddle steamer 'Lake Superior' hardworking an astronomical demonstrationNorthern Line Packet Company paddle steamer 'Lake Superior', USA, c1870s(?). The Northern Line Packet Company operated riverboat services on the Mississippi River between St Louis, Missouri and St Paul, Minnesota in the 19th century. Lantern slide.
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