Description: [view in Spanish]As a young artist living in Washington, William H. Holmes began sketching specimens for scientists at the U.S. National Museum. Based on that experience, he was invited to join the U.S. GeologicalSurvey of the Territories under the command of Ferdinand Vandiveer Hayden in 1872.During his early years in the western territories, Holmes refined his skills as an
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,