-
Cabell, Patrick H. Mar. 26, 1859
-
Calkins, William W. 1890 [to S. Watson]
-
Campbell, Douglas H. Nov. 13, 1891
-
Campbell, Douglas H. Oct. 26 [no year] [to S. Watson]
-
Candolle, Alphonse de Aug. 25, 1837 [to P. Aucher-Eloy]
-
Candolle, Alphonse de undated [to unknown]
-
Canfield, Colbert A. Oct. 6, 1859
-
Carey, Samuel T. July 17, 1846
-
Carey, Samuel T. June 14, 1847
-
Carey, Samuel T. July 20, 1848
-
Carey, Samuel T. Aug. 25, 1848
-
Carey, Samuel T. Feb. 15 [no year]
-
Carnel, Teodoro May 22, 1868
-
Carnel, Teodoro Oct. 2, 1869
-
Carnel, Teodoro Jan. 9, 1872
-
Carnel, Teodoro July 20, 1872
-
Carnel, Teodoro July 31, 1874
-
Carnel, Teodoro Nov. 15, 1876
-
Carnel, Teodoro Jan. 6, 1877
-
Carnel, Teodoro Nov. 13, 1878
-
Carnel, Teodoro Aug. 31, 1881
-
Carnel, Teodoro Sept. 16, 1881
-
Carruth, James H. July 5, 1888 [to S. Watson]
-
Carruthers, William Nov. 15, 1870
-
Carruthers, William Oct. 4, 1871
-
Carruthers, William Apr. 23, 1872
-
Carruthers, William Dec. 12, 1873
-
Carruthers, William May 1, 1882
-
Carruthers, William June 22, 1882
-
Carruthers, William June 12, 1884
-
Carruthers, William Sept. 15, 1885 [to S. Watson]
-
Carruthers, William Apr. 14, 1886
-
Watson, Sereno Feb. 13, 1890 [to W. Carruthers]
-
Carruthers, William Feb. 27, 1890 [to S. Watson]
-
Carson, Joseph June 8, 1844
-
Case, E. L. June 29, 1875
-
Caspary, Robert Feb. 17, 1856
-
Caspary, Robert Feb. 16, 1863
-
Caspary, Robert Sept. 25, 1865
-
Cassino, Samuel E. July 2, 1884 [envelope]
-
Cassino, Samuel E. July 2, 1884 [envelope verso]
-
Cassino, Samuel E. July 2, 1884
-
S. E. Cassino & Co. undated
-
Caswell, Alexis Jan. 1, 1870
-
Cathcart, Ellen W. June 2, 1890 [to S. Watson]
-
Cathcart, Ellen W. Mar. 3, 1891 [to S. Watson]
-
Catley, Henry May 14, 1879
-
Catley, Henry Apr. 22, 1880
-
Catley, Henry June 3, 1880
-
Catley, Henry Sept. 22, 1889 [to S. Watson]
-
Cesati, Vincenzo Mar. 30, 1869
-
Cesati, Vincenzo Oct. 16, 1869 [envelope]
-
Cesati, Vincenzo Oct. 16, 1869
-
Cesati, Vincenzo Oct. 1872
-
Chadbourne, Paul A. June 27, 1855
-
Chapman, Alvan W. Nov. 15, 1839
-
Chapman, Alvan W. July 24, 1842
-
Chapman, Alvan W. June 19, 1843
-
Chapman, Alvan W. Nov. 17, 1844
-
Chapman, Alvan W. Feb. 11, 1848
-
Chapman, Alvan W. Nov. 4, [1855]
-
Chapman, Alvan W. Nov. 4, [1855] [enclosed sketch]
-
Chapman, Alvan W. Mar. 23, 1857
-
Chapman, Alvan W. Apr. 4, 1859
-
Chapman, Alvan W. Jan. 23, 1860
-
Chapman, Alvan W. Jan. 30, 1860
-
Chapman, Alvan W. Mar. 17, 1860
-
Chapman, Alvan W. June 1, 1860
-
Chapman, Alvan W. June 20, 1860
-
Chapman, Alvan W. Sept. 24, 1860
-
Chapman, Alvan W. Dec. 8, 1860
-
Chapman, Alvan W. Feb. 9, 1861
-
Chapman, Alvan W. Nov. 27, 1865
-
Chapman, Alvan W. Feb. 9, 1866
-
Chapman, Alvan W. Feb. 9, 1866 [to G. Thurber]
-
Chapman, Alvan W. Feb. 9, 1866 [to G. Thurber] [enclosed list]
-
Chapman, Alvan W. July 10, 1866
-
Chapman, Alvan W. Sept. 12, 1866
-
Chapman, Alvan W. Sept. 18, 1866
-
Chapman, Alvan W. Feb. 29, 1868
-
Chapman, Alvan W. Jan. 2, 1870
-
Chapman, Alvan W. Feb. 9, 1870
-
Chapman, Alvan W. undated [fragment]
-
Chapman, Alvan W. May 24, 1876
-
Chapman, Alvan W. June 8, 1876
-
Chapman, Alvan W. Aug. 2, 1876
-
Chapman, Alvan W. May 13, 1877
-
Chapman, Alvan W. Jan. 21, 1878
-
Chapman, Alvan W. May 31, 1878
-
Chapman, Alvan W. Aug. 22, 1879
-
Chapman, Alvan W. Sept. 12, 1879
-
Chapman, Alvan W. Feb. 5, 1880
-
Chapman, Alvan W. Apr. 18, 1881 [to S. Watson]
-
Chapman, Alvan W. Aug. 10, 1882
-
Chapman, Alvan W. Jan. 24, 1883
-
Chapman, Alvan W. Jan. 18, 1884
-
Chapman, Alvan W. Apr. 4, 1887
-
Chapman, Alvan W. Apr. 18, 1887 [to S. Watson]
-
Chapman, Alvan W. Nov. 3, 1887
-
Chapman, Alvan W. Dec. 26, 1887 [to S. Watson]
-
Chapman, Alvan W. Nov. 18, 1889 [to S. Watson] [postcard]
-
Chapman, Alvan W. Feb. 27, 1890 [to S. Watson]
-
Chapman, Alvan W. July 17, 1890 [to S. Watson] [postcard]
-
Chapman, Alvan W. July 31, 1890 [to S. Watson]
-
Chapman, Alvan W. undated
-
Chapman, Alvan W. undated [Sun.]
-
Chapman, J. W. June 4, 1891 [to S. Watson]
-
Charavay, Étienne July 11, 1895 [to J. Gray]
-
Charavay, Étienne May 7, 1896 [to J. Gray]
-
Charavay, Étienne May 29, 1896 [to J. Gray]
-
Charavay, Étienne Aug. 19, 1896 [to J. Gray] [postcard]
-
Chatin, Adolphe Jan. 12, 1856
-
Chatin, Adolphe [Apr. 24], 1856
-
Chatterton, F. W. Mar. 18, 1890 [to S. Watson]
-
Cheeseman, Thomas F. Mar. 3, 1879
-
Chickering, John W. July 18, 1859
-
Chickering, John W. May 11, 1881 [to S. Watson]
-
Chickering, John W. Aug. 28, 1889 [to S. Watson]
-
Chickering, John W. Mar. 13, 1890 [to S. Watson]
-
Chickering, John W. June 18, 1897 [to M. L. Fernald]
-
Chipman, Marshall M. Apr. 27, 1891 [to S. Watson]
-
Chipman, Marshall M. May 18, 1891 [to S. Watson]
-
Choisy, Jacques D. Aug. 6, 1850
-
Christopher, James W. Mar. 22, 1890 [to S. Watson]
-
Christopher, James W. Mar. 26, 1890 [to S. Watson]
-
Churchill, Joseph R. Aug. 20, 1891 [to S. Watson]
-
Clark, Henry J. Sept. 13, 1849
-
Clark, Josephine A. Oct. 4, 1891 [to S. Watson]
-
Clark, Josephine A. Nov. 6, 1891 [to S. Watson]
-
Clark, Josephine A. Nov. 10, 1891 [to S. Watson]
-
Clark, William B. Oct. 2, 1890 [to S. Watson]
-
Clark, William B. Oct. 7, 1890 [to S. Watson]
-
Clark, William B. Oct. 11, 1890 [to S. Watson]
-
Clark, William B. Oct. 14, 1890 [to S. Watson]
-
Clark, William B. [c. 1890] [to S. Watson]
-
Clarke, C. C. May 14, 1890 [forwarded to S. Watson by G. L. Goodale]
-
Clarke, Cora H. May 1, 1887
-
Clarke, Benjamin May 15, 1866
-
Clarke, Benjamin May 15, 1866 [enclosure]
-
Clarke, F. L. Mar. 14, 1881 [to S. Watson]
-
Claybrooke, G. Feb. 15, 1890 [to S. Watson]
-
Claypole, Edward W. Nov. 9, 1888 [to J. Gray] [postcard verso]
-
Claypole, Edward W. May 13, 1890 [to S. Watson]
-
Cleveland, Daniel May 5, 1875
-
Cleveland, Daniel June 8, 1875
-
Cleveland, Daniel July 16, 1875
-
Cleveland, Daniel July 26, 1875
-
Cleveland, Daniel Aug. 27, 1875
-
Cleveland, Daniel May 31, 1876 [to S. Watson]
-
Cleveland, Daniel Oct. 13, 1876
-
Cleveland, Daniel Apr. 6, 1882
-
Cleveland, Daniel May 18, 1885
-
Cleveland, Daniel Dec. 15, 1887
-
Cleveland, Daniel Nov. 12, 1888 [to S. Watson]
-
Cleveland, Parker July 8, 1845
-
Cleveland, Parker June 13, 1845
-
Cleveland, Parker Jan. 30, 1846
-
Cleveland, Parker July 30, 1846
-
Cleveland, Parker Dec. 9, 1846
-
Cleveland, Parker Apr. 13, 1848
-
Clinton, George W. Oct. 15, 1862
-
Clinton, George W. Dec. 17, 1862
-
Clinton, George W. Dec. 25, 1862
-
Clinton, George W. Dec. 25, 1862 [2nd item]
-
Clinton, George W. Dec. 25, 1862 [3rd item]
-
Clinton, George W. Jan. 26, 1864
-
Clinton, George W. Feb. 1, 1864
-
Clinton, George W. Feb. 11, 1864
-
Clinton, George W. Feb. 13, 1864 [2nd item]
-
Clinton, George W. Feb. 13, 1864
-
Clinton, George W. July 4, 1864
-
Clinton, George W. July 5, 1864
-
Clinton, George W. July 13, 1864
-
Clinton, George W. Sept. 8, 1864
-
Clinton, George W. Oct. 28, 1864
-
Clinton, George W. Nov. 17, 1864
-
Clinton, George W. Jan. 20, 1865
-
Clinton, George W. June 12, 1865
-
Clinton, George W. June 21, 1865
-
Clinton, George W. June 21, 1865 [2nd item]
-
Clinton, George W. Dec. 15, 1865
-
Clinton, George W. Mar. 7, 1866
-
Clinton, George W. May 15, 1866
-
Clinton, George W. Sept. 30, 1866
-
Clinton, George W. Feb. 1, 1868
-
Clinton, George W. Jan. 1, 1868
-
Clinton, George W. Mar. 12, 1870
-
Clinton, George W. June 26, 1870
-
Clinton, George W. July 9, 1870
-
Clinton, George W. Nov. 5, 1870
-
Clinton, George W. Nov. 15, 1870
-
Clinton, George W. Feb. 6, 1872
-
Clinton, George W. Nov. 13, 1872
-
Clinton, George W. Mar. 17, 1873
-
Clinton, George W. Apr. 19, 1873
-
Clinton, George W. Nov. 26, 1874
-
Clinton, George W. Dec. 14, 1874
-
Clinton, George W. May 13, 1875
-
Clinton, George W. May 22, 1877
-
Clinton, George W. Feb. 25, 1878
-
Clinton, George W. July 9, 1878 [to S. Watson]
-
Clinton, George W. Oct. 5, 1882
-
Clinton, George W. 1884
-
Clinton, George W. Dec. 27, 1884