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Nachtrieb, Henry Francis, 1857-1942, Correspondence 1886-1887 (Box 1, Folder 2)
Natural History Survey of Minnesota, correspondence (Box 4, Folder 47)
Zoological Survey Notes 1892 (Box 5, Folder 54)
A Zoological Survey of Minnesota, Lake Vermilion Party (Box 5, Folder 54)
Correspondence with F.L. Washburn (Box 3, Folder 37)
Letter press book, Vol. 1 (Box 6, Volume 1)
Letter press book, Vol. 2 (Box 6, Volume 2)
Letter press book, Vol. 3 (Box 6, Volume 3)
B Zoological Survey of Minnesota, Hubbard County (Box 5, Folder 55)
C Zoological Survey of Minnesota (Box 5, Folder 56)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1893-1894 (Box 1, Folder 3)
E Zoological Survey of Minnesota, Leech Lake (Box 5, Folder 57)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1895 (Box 1, Folder 4)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1896 (Box 1, Folder 5)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1897 (Box 1, Folder 6)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1898 (Box 1, Folder 7)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1899 (Box 1, Folder 8)
Gull Lake, Vermilion, Rainy Lake (Box 7, Folder 3)
Megalops (Box 7, Folder 1)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1900 (Box 1, Folder 9)
Natural History Survey of Minnesota, copies of vouchers (Box 4, Folder 52)
Recollection of Megalops (Box 7, Folder 2)
Joseph S. Guthrie, field notebook (Box 5, Folder 58)
Natural History Survey of Minnesota, correspondence (Box 4, Folder 48)
Diptera field notebook, 1901 (Box 5, Folder 59)
D Zoological Survey of Minnesota (Box 5, Folder 59)
Field notebook, 1901, 1396 1/2 (Box 5, Folder 59)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1901 (Box 1, Folder 10)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1902 (Box 1, Folder 11)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1903 (Box 1, Folder 12)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1904 (Box 1, Folder 13)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1905 (Box 1, Folder 14)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1906 (Box 1, Folder 15)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1907 (Box 1, Folder 16)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1908, Jan. - June (Box 1, Folder 17)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1908, June - Dec. (Box 1, Folder 18)
Natural History Survey of Minnesota, correspondence re vouchers (Box 4, Folder 51)
Natural History Survey of Minnesota, instructions (Box 4, Folder 50)
Natural History Survey of Minnesota, correspondence (Box 4, Folder 49)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1909 (Box 1, Folder 19)
Correspondence re: Simplified Spelling (Box 3, Folder 38)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1910 (Box 2, Folder 20)
Correspondence with Hal Downey (Box 3, Folder 33a)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1911 (Box 2, Folder 21)
Correspondence with George E. Vincent (Box 3, Folder 36)
Correspondence with James Ford Bell (Box 3, Folder 32a)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1912 (Box 2, Folder 22)
Building plans for mechanical equipment for Biology building (Box 3, Folder 40)
Building plans of architect for Biology building (Box 3, Folder 39)
Building plans of Biology building, correspondence (Box 3, Folder 41)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1913 (Box 2, Folder 23)
Building plans of Biology building, correspondence with Kewuenee Manufacturing Company (Box 4, Folder 46)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1914 (Box 2, Folder 24)
Correspondence with Guy Stanton Ford (Box 3, Folder 34)
Correspondence with John Black Johnston (Box 3, Folder 35)
Building plans for Biology building, Correspondence January - July (Box 4, Folder 42)
Building plans of Biology building, correspondence, July - December (Box 4, Folder 43)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1915 (Box 2, Folder 25)
Correspondence with Lotus Delta Coffman (Box 3, Folder 33)
Building plans of Biology building, correspondence, January - June (Box 4, Folder 44)
Building plans of Biology building, correspondence, July (Box 4, Folder 45)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1916-1917 (Box 2, Folder 26)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1918 (Box 2, Folder 27)
Nachtrieb, Henry Francis, 1857-1942, Correspondence 1919 (Box 2, Folder 28)
Correspondence (Box 3, Folder 29)
Correspondence (Box 3, Folder 30)
Correspondence (Box 3, Folder 31)
Supplement 2: Scrapbook (Box 6, Scrapbook 1)
Clipping of speech to graduating class, 1929 (Box 4, Folder 53)
Nachtrieb, Henry Francis, 1857-1942, Correspondence, undated (Box 1, Folder 1)