A, Miscellaneous, 1883-1926
Select: A, Miscellaneous, 1883-1926
Bryn Mawr College, 1907-1919
Select: Bryn Mawr College, 1907-1919
B, Miscellaneous, 1880-1928
Select: B, Miscellaneous, 1880-1928
"Colles", 1869-1870
Select: "Colles", 1869-1870
Crawford, M. D. C., 1918-1930
Select: Crawford, M. D. C., 1918-1930
Culin, Stewart, 1918-1919
Select: Culin, Stewart, 1918-1919
Culin, Stewart, 1922-1927
Select: Culin, Stewart, 1922-1927
C, Miscellaneous, 1907-1924
Select: C, Miscellaneous, 1907-1924
De Forest, Alfred and Izette, 1898-1924
Select: De Forest, Alfred and Izette, 1898-1924
De Forest, Henry Grant, circa 1858-1884
Select: De Forest, Henry Grant, circa 1858-1884
De Forest, Henry Wheeler, circa 1869-1925
Select: De Forest, Henry Wheeler, circa 1869-1925
De Forest, Johnston, 1931
Select: De Forest, Johnston, 1931
De Forest, Judith, 1890-1898
Select: De Forest, Judith, 1890-1898
De Forest, Julia Brasher, 1875-1922
Select: De Forest, Julia Brasher, 1875-1922
De Forest, Julia Mary, 1869-1892
Select: De Forest, Julia Mary, 1869-1892
De Forest, Meta Kemble, 1884-1885
Select: De Forest, Meta Kemble, 1884-1885
De Forest, Meta Kemble, 1886-1927
Select: De Forest, Meta Kemble, 1886-1927
De Forest, Robert Weeks ("Robin"), 1858-1931
Select: De Forest, Robert Weeks ("Robin"), 1858-1931
Denig, Lynde, circa 1923
Select: Denig, Lynde, circa 1923
D, Miscellaneous, 1880-1922
Select: D, Miscellaneous, 1880-1922
Frohne, Henry W., 1918
Select: Frohne, Henry W., 1918
F, Miscellaneous, 1928
Select: F, Miscellaneous, 1928
Garrett, M. E., 1887
Select: Garrett, M. E., 1887
Gould, Arthur L., 1925
Select: Gould, Arthur L., 1925
H, Miscellaneous, 1868-1925
Select: H, Miscellaneous, 1868-1925
Jacob, S. S., 1893-1894
Select: Jacob, S. S., 1893-1894
J, Miscellaneous, 1893-1926
Select: J, Miscellaneous, 1893-1926
Kahil, A. A., 1911-1912
Select: Kahil, A. A., 1911-1912
Korzybski, Alfred, 1921-1924
Select: Korzybski, Alfred, 1921-1924
Korzybski, Alfred, 1926-1930
Select: Korzybski, Alfred, 1926-1930
K, Miscellaneous, 1880-1914
Select: K, Miscellaneous, 1880-1914
Laufer, Berthold, 1922
Select: Laufer, Berthold, 1922
L, Miscellaneous, 1880-1921
Select: L, Miscellaneous, 1880-1921
M-N, Miscellaneous, 1882-1925
Select: M-N, Miscellaneous, 1882-1925
Observatories Correspondence, 1923
Select: Observatories Correspondence, 1923 Scope and Contents Correspondence with various observatories about de Forest's observations of the solar corona.
Polzer, Ludwig, 1926-1927
Select: Polzer, Ludwig, 1926-1927
Pratt, George D., 1928
Select: Pratt, George D., 1928
Pritchett, Mr., 1920
Select: Pritchett, Mr., 1920
Purushottam M. Hutheesing & Sons, 1911
Select: Purushottam M. Hutheesing & Sons, 1911
P, Miscellaneous, 1876-circa 1930
Select: P, Miscellaneous, 1876-circa 1930
Ravell, H., 1924
Select: Ravell, H., 1924
Robinson, Edward Stevens, 1925-1928
Select: Robinson, Edward Stevens, 1925-1928
Roosevelt, W. E., 1876
Select: Roosevelt, W. E., 1876
R, Miscellaneous, 1912-1926
Select: R, Miscellaneous, 1912-1926
Simmonds, Barbara, 1922-1923
Select: Simmonds, Barbara, 1922-1923
S, Miscellaneous, 1886-1928
Select: S, Miscellaneous, 1886-1928
T, Miscellaneous, 1921-1922
Select: T, Miscellaneous, 1921-1922
Warner, Langdon, 1921
Select: Warner, Langdon, 1921
Weeks, Arthur, 1865-1868
Select: Weeks, Arthur, 1865-1868
W-Z, Miscellaneous, circa 1923
Select: W-Z, Miscellaneous, circa 1923
Duplicates of Correspondence Transcriptions, circa 1918-1930
Select: Duplicates of Correspondence Transcriptions, circa 1918-1930
Miscellaneous Letter Fragments and Unidentified Correspondence, 1880-1931
Select: Miscellaneous Letter Fragments and Unidentified Correspondence, 1880-1931
Letter Book from India, 1881-1882
Select: Letter Book from India, 1881-1882 Scope and Contents Oversized letter book housed in Box 4.
Letter Book, 1905-1918
Select: Letter Book, 1905-1918
De Forest, Meta Kemble
Select: De Forest, Meta Kemble
De Forest, Julia Mary (Undated Correspondence), circa 1879-circa 1893
Select: De Forest, Julia Mary (Undated Correspondence), circa 1879-circa 1893
De Forest, Julia Mary, 1879-1893
Select: De Forest, Julia Mary, 1879-1893
Du Pont, Margaretta (Mrs. Alfred), circa 1888-1892
Select: Du Pont, Margaretta (Mrs. Alfred), circa 1888-1892
Du Pont, Margaretta (Mrs. Alfred), 1893-1897
Select: Du Pont, Margaretta (Mrs. Alfred), 1893-1897
Typed Excerpts of Meta De Forest's Letters, 1892-1893
Select: Typed Excerpts of Meta De Forest's Letters, 1892-1893
Oversized Letter Book digitized with Box 1, Folder 53, 1881-1882
Select: Oversized Letter Book digitized with Box 1, Folder 53, 1881-1882