This finding aid was digitized with funds generously provided by the Smithsonian Institution Women's Committee.
The papers of Harry K. Harring include incoming correspondence, chiefly from Frank Jacob Myers, concerning the collection and identification of rotatoria and the monograph, "The Rotifers of Wisconsin." Correspondence with Frits Johansen concerns Harring's work on the rotatoria collected by the Canadian Arctic Expedition. Also included in the collection are field and research notes of Harring and field notes kept by Francis John Dyer while collecting rotatoria for the USNM in Honduras, 1915-1916.
Harry K. Harring (1871-1928) was born in Nykjobing, Denmark. He studied at the Technical School at Skanderborg, Denmark, and after graduation was employed in the design and manufacture of physical and chemical apparatus. He came to the United States in 1893 and shortly thereafter received appointment as Scientific Instrument Maker at the National Bureau of Standards, Washington, D.C. In his spare time, Harring developed an interest in fresh water microscopic organisms, especially the Rotatoria. His published works consist of 12 titles, including "Synopsis of the Rotatoria" (United States National Museum Bulletin 81, 1913). His most important work was "The Rotifers of Wisconsin," authored in collaboration with Frank Jacob Myers. On May 1, 1914, Harring was awarded the honorary title of Custodian of the Rotatoria in the Division of Marine Invertebrates of the United States National Museum (USNM). He was also editor for the section on Rotatoria, Gastrotricha, and Chaetognatha for Biological Abstracts.
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