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Morrow, Jay J. May 14, 1921 [to C.W. Powell] [copy from original letter]
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Ames, Oakes Sept. 14, 1921 [to C.W. Powell]
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Ames, Oakes Sept. 18, 1921 [to C.W. Powell]
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Powell, Charles W. Oct. 19, 1921 [to O. Ames]
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Ames, Oakes Oct. 20, 1921 [to C.W. Powell]
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Ames, Oakes Oct. 21, 1921 [to C.W. Powell]
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Ames, Oakes Oct. 26, 1921 [to C.W. Powell]
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Powell, Charles W. Oct. 30, 1921 [to O. Ames]
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Powell, Charles W. Nov. 3, 1921 [to P.C. Standley]
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Powell, Charles W. Nov. 22, 1921 [to O. Ames]
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Powell, Charles W. Nov. 15, 1921 [to O. Ames]
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Ames, Oakes Nov. 17, 1921 [to C.W. Powell]
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Ames, Oakes Nov. 20, 1921 [to C.W. Powell]
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Ames, Oakes Nov. 22, 1921 [to C.W. Powell]
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Powell, Charles W. Nov. 25, 1921 [to O. Ames]
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Ames, Oakes Nov. 28, 1921 [to C.W. Powell]
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Powell, Charles W. Dec. 2, 1921 [to O. Ames]
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Powell, Charles W. Dec. 5, 1921 [to O. Ames]
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Schlechter, Rudolf Dec. 14, 1921 [to C.W. Powell]
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Powell, Charles W. Dec. 15, 1921 [to O. Ames]
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Ames, Oakes Dec. 16, 1921 [to C.W. Powell]
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undated [photograph]
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[Powell, Charles W.] Dec. 27, 1921 [to O. Ames] [fragment]
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undated [fragment]
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Ames, Oakes Jan. 1, 1922 [to C.W. Powell]
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Ames, Oakes Jan. 6, 1922 [to C.W. Powell]
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Powell, Charles W. Jan. 10, 1922 [to O. Ames]
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Powell, Charles W. Jan. 22, 1922 [list from Dr. Schlechter]
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Partial check list of the Panama Orchids
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Powell, Charles W. Jan. 22, 1922 [to O. Ames]
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Ames, Oakes Jan. 24, 1922 [to C.W. Powell]
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Powell, Charles W. Jan. 31, 1922 [to O. Ames]
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Ames, Oakes Feb. 2, 1922 [to C.W. Powell]
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Ames, Oakes Feb. 3, 1922 [to C.W. Powell]
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Ames, Oakes Feb. 8, 1922 [to C.W. Powell]
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Schlechter, Rudolf Feb. 27, 1922 [to C.W. Powell] [postcard]
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Powell, Charles W. March 4, 1922 [to O. Ames]
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Powell, Charles W. March 16, 1922 [to O. Ames]
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Powell, Charles W. March 22, 1922 [to O. Ames]
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Ames, Oakes March 24, 1922 [to C.W. Powell]
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Powell, Charles W. March 26, 1922 [to O. Ames]
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Ames, Oakes March 30, 1922 [to C.W. Powell]
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Ames, Oakes April 1, 1922 [to C.W. Powell]
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Powell, Charles W. April 5, 1922 [to O. Ames]
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Ames, Oakes April 5, 1922 [to C.W. Powell]
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Ames, Oakes April 15, 1922 [to C.W. Powell]
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Powell, Charles W. April 16, 1922 [to O. Ames]
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Ames, Oakes April 20, 1922 [to C.W. Powell]
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Powell, Charles W. April 25, 1922 [to O. Ames]
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May 6, 1922 [to O. Ames] [postcard]
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Ames, Oakes May 9, 1922 [to C.W. Powell]
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Powell, Charles W. May 10, 1922 [to O. Ames]
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Powell, Charles W. May 18, 1922 [to O. Ames]
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Powell, Charles W. May 21, 1922 [to O. Ames]
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Ames, Oakes May 22, 1922 [to C.W. Powell]
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Ames, Oakes May 22, 1922 [to C.W. Powell] [2nd item]
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Ames, Oakes May 30, 1922 [to C.W. Powell]
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Powell, Charles W. June 1, 1922 [to O. Ames]
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Powell, Charles W. June 2, 1922 [to O. Ames]
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Ames, Oakes June 5, 1922 [to C.W. Powell]
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Ames, Oakes June 7, 1922 [to C.W. Powell]
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Powell, Charles W. June 9, 1922 [to O. Ames]
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Ames, Oakes June 10, 1922 [to C.W. Powell]
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Ames, Oakes June 12, 1922 [to C.W. Powell]
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Ames, Oakes June 13, 1922 [to C.W. Powell]
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Powell, Charles W. June 15, 1922 [to O. Ames]
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Ames, Oakes June 16, 1922 [to C.W. Powell]
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Powell, Charles W. June 17, 1922 [to O. Ames]
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Ames, Oakes June 19, 1922 [to C.W. Powell]
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Powell, Charles W. June 20, 1922 [to O. Ames]
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Powell, Charles W. June 21, 1922 [to O. Ames]
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Ames, Oakes June 26, 1922 [to C.W. Powell]
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Powell, Charles W. June 27, 1922 [to O. Ames] [cablegram]
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Ames, Oakes June 29, 1922 [to C.W. Powell]
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Powell, Charles W. July 2, 1922 [to O. Ames]
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Powell, Charles W. July 2, 1922 [to O. Ames] [2nd item]
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Powell, Charles W. July 2, 1922 [to O. Ames] [3rd item]
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Andrews, A. LeRoy July 2, 1922 [to C. Schweinfurth]
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Ames, Oakes July 10, 1922 [to C.W. Powell?]
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Powell, Charles W. Sept. 3, 1922 [to O. Ames]
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Powell, Charles W. Sept. 6, 1922 [to O. Ames]
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Powell, Charles W. Sept. 10, 1922 [to O. Ames]
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Powell, Charles W. Sept. 17, 1922 [to O. Ames]
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Ames, Oakes Sept. 22, 1922 [to C.W. Powell]
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Powell, Charles W. Sept. 25, 1922 [to O. Ames] [with annotations]
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Powell, Charles W. Sept. 25, 1922 [to O. Ames]
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Ames, Oakes Sept. 27, 1922 [to C.W. Powell]
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Powell, Charles W. Sept. 27, 1922 [to O. Ames]
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Powell, Charles W. Sept. 27, 1922
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Ames, Oakes Sept. 28, 1922 [to C.W. Powell]
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Ames, Oakes Sept. 29, 1922 [to C.W. Powell]
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Powell, Charles W. Oct. 4, 1922 [to O. Ames]
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Ames, Oakes Oct. 6, 1922 [to C.W. Powell]
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Powell, Charles W. Oct. 8, 1922 [to O. Ames]
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Powell, Charles W. Oct. 8, 1922 [to O. Ames] [2nd item]
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Ames, Oakes Oct. 10, 1922 [to C.W. Powell]
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Ames, Oakes Oct. 11, 1922 [to C.W. Powell]
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Powell, Charles W. Oct. 15, 1922 [to O. Ames]
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Ames, Oakes Oct. 17, 1922 [to C.W. Powell]
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Ames, Oakes Oct. 20, 1922 [to C.W. Powell]
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Powell, Charles W. Oct. 24, 1922 [to O. Ames]
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Powell, Charles W. Oct. 28, 1922 [to O. Ames]
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Powell, Charles W. Oct. 29, 1922 [to O. Ames]
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Powell, Charles W. Nov. 5, 1922 [to O. Ames]
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Ames, Oakes Nov. 8, 1922 [to C.W. Powell]
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Powell, Charles W. Nov. 10, 1922 [to O. Ames]
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Ames, Oakes Nov. 18, 1922 [to C.W. Powell]
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Powell, Charles W. Nov. 20, 1922 [to O. Ames]
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Ames, Oakes Nov. 20, 1922 [to C.W. Powell]
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Powell, Charles W. Dec. 3, 1922 [to O. Ames]
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Ames, Oakes Dec. 5, 1922 [to C.W. Powell]
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Powell, Charles W. Dec. 8, 1922 [to O. Ames]
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Ames, Oakes Dec. 12, 1922 [to C.W. Powell]
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Ames, Oakes Dec. 18, 1922 [to C.W. Powell]
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Powell, Charles W. Dec. 20, 1922 [to O. Ames]
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Schlechter, Rudolf Nov. 23, 1922 [to C.W. Powell] [copy]
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Ames, Oakes Dec. 31, 1922 [to C.W. Powell]
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Ames, Oakes Jan. 5, 1923 [to C.W. Powell]
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Ames, Oakes Jan. 5, 1923 [to C.W. Powell] [2nd item]
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Jan. 6, 1923 [to O. Ames] [check memo]
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Ames, Oakes Jan. 6, 1923 [to C.W. Powell]
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Ames, Oakes Jan. 14, 1923 [to C.W. Powell]
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Powell, Charles W. Jan. 18, 1923 [to O. Ames]
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Ames, Oakes Jan. 20, 1923 [to C.W. Powell]
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Ames, Oakes Jan. 31, 1923 [to C.W. Powell]
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Ames, Oakes April 13, 1923 [to C.W. Powell]
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Ames, Oakes April 23, 1923 [to C.W. Powell]
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undated [clipping]
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Powell, Charles W. April 23, 1923 [to O. Ames]
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Powell, Charles W. April 29, 1923 [to O. Ames]
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Ames, Oakes May 3, 1923 [to C.W. Powell]
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Ames, Oakes May 4, 1923 [to C.W. Powell]
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Ames, Oakes May 5, 1923 [to C.W. Powell]
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Ames, Oakes May 6, 1923 [to C.W. Powell]
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May 7, 1923 [Numbers needed from C.W. Powell...]
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Ames, Oakes May 8, 1923 [to C.W. Powell]
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Ames, Oakes May 21, 1923 [to C.W. Powell]
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Ames, Oakes May 28, 1923 [to C.W. Powell]
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Ames, Oakes June 4, 1923 [to C.W. Powell]
-
Ames, Oakes June 7, 1923 [to C.W. Powell]
-
Ames, Oakes June 8, 1923 [to C.W. Powell]
-
Ames, Oakes June 27, 1923 [to C.W. Powell]
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Ames, Oakes July 2, 1923 [to C.W. Powell]
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Schweinfurth, Charles July 3, 1923 [to C.W. Powell]
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Ames, Oakes July 6, 1923 [to C.W. Powell]
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Ames, Oakes July 16, 1923 [to C.W. Powell]
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Ames, Oakes July 19, 1923 [to C.W. Powell]
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Ames, Oakes July 27, 1923 [to C.W. Powell]
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Ames, Oakes Aug. 3, 1923 [to C.W. Powell]
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Ames, Oakes Aug. 30, 1923 [to C.W. Powell]
-
Ames, Oakes Sept. 7, 1923 [to C.W. Powell]
-
Ames, Oakes Sept. 10, 1923 [to C.W. Powell]
-
Ames, Oakes Sept. 13, 1923 [to C.W. Powell]
-
Ames, Oakes Oct. 9, 1923 [to C.W. Powell]
-
Ames, Oakes Oct. 10, 1923 [to C.W. Powell]
-
Ames, Oakes Oct. 12, 1923 [to C.W. Powell]
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Ames, Oakes Oct. 27, 1923 [to C.W. Powell]
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Ames, Oakes Nov. 1, 1923 [to C.W. Powell]
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Ames, Oakes Nov. 8, 1923 [to C.W. Powell]
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Ames, Oakes Nov. 23, 1923 [to C.W. Powell]
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Ames, Oakes Dec. 11, 1923 [to C.W. Powell]
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Ames, Oakes Dec. 26, 1923 [to C.W. Powell]
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Ames, Oakes Jan. 8, 1924 [to C.W. Powell]
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Ames, Oakes Jan. 14, 1924 [to C.W. Powell]
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Ames, Oakes Feb. 5, 1924 [to C.W. Powell]
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Ames, Oakes March 13, 1924 [to C.W. Powell]
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Ames, Oakes March 24, 1924 [to C.W. Powell]
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undated [description]
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Powell, Charles W. Dec. 20, 1922 [to R. Schlechter]
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Powell, Charles W. Dec. 20, 1922 [to O. Ames] [2nd item]
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Powell, Charles W. Dec. 25, 1922 [to O. Ames]
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Powell, Charles W. undated [to O. Ames] [memo of letter]
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Powell, Charles W. Dec. 22, 1922 [to O. Ames]
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Powell, Charles W. Jan. 10, 1925 [to O. Ames]
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undated [list of unreported]