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Zoological Survey Notes 1892 (Box 5, Folder 54)
Supplement 2: Scrapbook (Box 6, Scrapbook 1)
Recollection of Megalops (Box 7, Folder 2)
Natural History Survey of Minnesota, instructions (Box 4, Folder 50)
Natural History Survey of Minnesota, correspondence re vouchers (Box 4, Folder 51)
Natural History Survey of Minnesota, correspondence (Box 4, Folder 49)
Natural History Survey of Minnesota, correspondence (Box 4, Folder 48)
Natural History Survey of Minnesota, correspondence (Box 4, Folder 47)
Natural History Survey of Minnesota, copies of vouchers (Box 4, Folder 52)
Nachtrieb, Henry Francis, 1857-1942, Correspondence, undated (Box 1, Folder 1)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1919 (Box 2, Folder 28)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1918 (Box 2, Folder 27)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1916-1917 (Box 2, Folder 26)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1915 (Box 2, Folder 25)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1914 (Box 2, Folder 24)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1913 (Box 2, Folder 23)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1912 (Box 2, Folder 22)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1911 (Box 2, Folder 21)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1910 (Box 2, Folder 20)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1909 (Box 1, Folder 19)