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: [view in Spanish][edan-image:id=siris_sic_6874,size=185,left]Alexander Wetmore was the sixth secretary of the Smithsonian Institution. He developed an early interest in natural history and published his first paper on birds at the age of thirteen. He received a B.S. from the University of Kansas (1912) and and M.S. and Ph. D. from George Washington University (1916 &