Description: [caption id="" align="aligncenter" width="409" caption="At the Louisiana Purchase Exposition in Saint Louis, Missouri, a view of the Natural History Fossil Exhibit with the model of a whale and skeletons of several dinosaurs, The Smithsonian coordinated all of the United States Government exhibits and prepared a display on its activities and collections for the exposition,
Description: [caption id="" align="aligncenter" width="430" caption="Color postcard of the East African lions in the mammal hall of the United States National Museum, now the National Museum of Natural History, pre 1959, by Unidentified photographer, Photographic print, Smithsonian Institution Archives, Record Unit 95, Box 45, Folder 26, Negative Number: SIA2010-0488."][/caption]
Description: [caption id="" align="aligncenter" width="454" caption="At the Louisiana Purchase Exposition, Saint Louis, Missouri, 1904, Smithsonian Institution's United States National Museum exhibit includes the Langley Aerodrome, a model of a whale suspended from the ceiling, natural history exhibits, archaeological objects, and industrial machines, The Smithsonian coordinated all of the