Description: [view in Spanish][edan-image:id=siris_sic_9227,size=110,left]Exchanging specimens is essential in botanical research: Herbaria swap their duplicates in return for specimens they lack. Such international trading is based on relations established through correspondence and research trips, relations that endure through generations of botanists. By the early twentieth century,
Description: The National Museum of Natural History (NMNH) first opened to the public on March 17, 1910, as the new United States National Museum. The National Museum was first housed in what is now the Arts and Industries Building. The postcards in this gallery provide exterior views of the building as well as images of exhibits inside the museum. We know that many of these postcards are