-
Brace, John P. Feb. 15, 1849
Date 1849-02-15
-
Bradford, Thomas L. Feb. 21, 1891 [to S. Watson]
Date 1891-02-21
-
L. H. Bradford & Co. Apr. 18, 1856
Date 1856-04-18
-
Watson, Sereno Sept. 1871 [to L. H. Bradford & Co.]
Date 1871-09
-
Bradley, Cornelius B. Dec. 31, 1872
Date 1872-12-31
-
Bramwell, Frederick J. Dec. 31, 1882
Date 1882-12-31
-
Bramwell, Frederick J. June 24, 1887
Date 1887-06-24
-
Bramwell, Frederick J. June 27, 1887
Date 1887-06-27
-
Brandegee, Townshend S. June 9, 1874
Date 1874-06-09
-
Brandegee, Townshend S. Oct. 19, 1877
Date 1877-10-19
-
Brandegee, Townshend S. Jan. 15, 1884 [forwarded by W. M. Canby]
Date 1884-01-15
-
Brandegee, Townshend S. Jan. 15, 1884 [forwarded by W. M. Canby] [list]
Date 1884-01-15
-
Brandegee, Townshend S. Aug. 30, 1888 [to S. Watson]
Date 1888-08-30
-
Brandegee, Townshend S. Oct. 31, 1888 [to S. Watson]
Date 1888-10-31
-
Brandegee, T. S. and Katharine Sept. 10, 1891 [to J. Gray]
Date 1891-09-10
-
Brandegee, Townshend S. Mar. 29 [no year]
Date 03-29
-
Brandegee, Townshend S. Oct. 11 [no year]
Date 10-11
-
Braun, Alexander Aug. 1, 1850
Date 1850-08-01
-
Braun, Alexander Nov. 12, 1852
Date 1852-11-12
-
Braun, Alexander Oct. 16, 1854
Date 1854-10-16
-
Braun, Alexander July 16, 1866
Date 1866-07-16
-
Braun, Alexander Sept. 3, 1866
Date 1866-09-03
-
Braun, Alexander Dec. 29, 1866
Date 1866-12-29
-
Braun, Alexander May 17, 1875
Date 1875-05-17
-
Braun, Alexander Mar. 29, 1877 [death notice]
Date 1877-03-29
-
Braun, Alexander undated
Date 1842-1904
-
Braun, Alexander undated [2nd item]
Date 1842-1904
-
Brendel, Frederick Apr. 3, 1878
Date 1878-04-03
-
Brendel, Frederick Sept. 11, 1892 [to J. Gray]
Date 1892-09-11
-
Brendel, Frederick Nov. 20, 1892 [to J. Gray]
Date 1892-11-20
-
Brewer, William H. Mar. 26 [no year]
Date 03-26
-
Brewer, William H. Feb. 18, 1855
Date 1855-02-18
-
Brewer, William H. Jan. 7, 1861
Date 1861-01-07
-
Brewer, William H. June 10, 1861
Date 1861-06-10
-
Brewer, William H. Jan. 4, 1862
Date 1862-01-04
-
Brewer, William H. May 13, 1862
Date 1862-05-13
-
Brewer, William H. June 2, 1862
Date 1862-06-02
-
Brewer, William H. Aug. 11, 1862
Date 1862-08-11
-
Brewer, William H. Oct. 27, 1862
Date 1862-10-27
-
Brewer, William H. Jan. 2, 1863
Date 1863-01-02
-
Brewer, William H. Mar. 21, 1863
Date 1863-03-21
-
Brewer, William H. Mar. 31, 1863
Date 1863-03-31
-
Brewer, William H. June 5, 1863
Date 1863-06-05
-
Brewer, William H. Aug. 13, 1863
Date 1863-08-13
-
Brewer, William H. Nov. 11, 1863
Date 1863-11-11
-
Brewer, William H. Dec. 1, 1863
Date 1863-12-01
-
Brewer, William H. Feb. 22, 1864
Date 1864-02-22
-
Brewer, William H. Apr. 2, 1864
Date 1864-04-02
-
Brewer, William H. June 22, 1864
Date 1864-06-22
-
Brewer, William H. Nov. 23, 1868 [to A. and J. Gray]
Date 1868-11-23
-
Brewer, William H. Apr. 5, 1870
Date 1870-04-05
-
Brewer, William H. Sept. 6, 1870
Date 1870-09-06
-
Brewer, William H. Nov. 5, 1870
Date 1870-11-05
-
Brewer, William H. Dec. 18, 1873
Date 1873-12-18
-
Brewer, William H. Dec. 22, 1873 [to S. Watson]
Date 1873-12-22
-
Brewer, William H. Aug. 12, 1874
Date 1874-08-12
-
Brewer, William H. Nov. 14, 1877
Date 1877-11-14
-
Brewer, William H. 1878 [to S. Watson]
Date 1878
-
Brewer, William H. May 21, 1880 [to S. Watson]
Date 1880-05-21
-
Brewer, William H. Dec. 16, 1887 [to S. Watson]
Date 1887-12-16
-
Brewer, William H. June 21, 1888 [to S. Watson]
Date 1888-06-21
-
Brewer, William H. Dec. 28, 1888 [to S. Watson]
Date 1888-12-28
-
Brezina, Aristides May 20, 1887
Date 1887-05-20
-
Bridges, George Apr. 15, 1851
Date 1851-04-15
-
Bridges, George Oct. 11, 1851
Date 1851-10-11
-
Bridges, George Oct. 16, 1851
Date 1851-10-16
-
Bridges, George Dec. 15, 1851
Date 1851-12-15
-
Bridges, George Dec. 22, 1851
Date 1851-12-22
-
Bridges, George Jan. 5, 1852
Date 1852-01-05
-
Bridges, George Jan. 8, 1852
Date 1852-01-08
-
Bridges, George Apr. 14, 1852
Date 1852-04-14
-
Bridges, George May 15, 1852
Date 1852-05-15
-
Bridges, George July 9, 1852
Date 1852-07-09
-
Bridges, George Aug. 29, 1852
Date 1852-08-29
-
Bridges, George Sept. 25, 1852
Date 1852-09-25
-
Bridges, George Mar. 10, 1853
Date 1853-03-10
-
Bridges, George Mar. 16, 1853
Date 1853-03-16
-
Bridges, George May 17, 1853
Date 1853-05-17
-
Bridges, George Aug. 23, 1853
Date 1853-08-23
-
Bridges, George Oct. 21, 1853
Date 1853-10-21
-
Bridges, George Oct. 27, 1853
Date 1853-10-27
-
Bridges, George Nov. 3, 1853
Date 1853-11-03
-
Bridges, George Dec. 27, 1853
Date 1853-12-27
-
Brigham, William T. Mar. 25, 1871
Date 1871-03-25
-
Brigham, William T. Feb. 23, 1889 [to S. Watson]
Date 1889-02-23
-
Brigham, William T. Aug. 26, 1890 [to S. Watson]
Date 1890-08-26
-
Brigham, William T. Dec. 9, 1890 [to S. Watson]
Date 1890-12-09
-
Brill, Evert J. Nov. 25, 1851
Date 1851-11-25
-
Brill, Evert J. Nov. 25, 1851 [attached note]
Date 1851-11-25
-
Brill, Evert J. Oct. 13, 1852 [attached letter]
Date 1852-10-13
-
Brill, Evert J. Oct. 13, 1852
Date 1852-10-13
-
Brill, Evert J. Feb. 10, 1855
Date 1855-02-10
-
Brill, Evert J. undated
Date 1842-1904
-
Brimmer, George June 21, 1886 [to W. Trelease]
Date 1886-06-21
-
Britten, James May 1, 1882
Date 1882-05-01
-
Britten, James Feb. 17, 1883
Date 1883-02-17
-
Britton, Nathaniel L. Mar. 22, 1882
Date 1882-03-22
-
Britton, Nathaniel L. Sept. 4, 1882 [to S. Watson]
Date 1882-09-04
-
Britton, Nathaniel L. Mar. 4, 1884 [to S. Watson]
Date 1884-03-04
-
Britton, Nathaniel L. Nov. 25, 1884 [to S. Watson]
Date 1884-11-25
-
Britton, Nathaniel L. Nov. 30, 1887
Date 1887-11-30
-
Britton, Nathaniel L. Jan. 1, 1888 [to S. Watson]
Date 1888-01-01
-
Britton, Nathaniel L. Apr. 2, 1888
Date 1888-04-02
-
Britton, Nathaniel L. Apr. 8, 1888 [to S. Watson]
Date 1888-04-08
-
Britton, Nathaniel L. Apr. 15, 1888
Date 1888-04-15
-
Britton, Nathaniel L. May 3, 1888 [to S. Watson]
Date 1888-05-03
-
Britton, Nathaniel L. May 8, 1888 [to S. Watson]
Date 1888-05-08
-
Britton, Nathaniel L. July 3, 1888 [to S. Watson]
Date 1888-07-03
-
Britton, Nathaniel L. Aug. 20, 1888 [to S. Watson]
Date 1888-08-20
-
Britton, Nathaniel L. Nov. 19, 1888 [to S. Watson]
Date 1888-11-19
-
Britton, Nathaniel L. Jan. 19, 1889 [to S. Watson]
Date 1889-01-19
-
Britton, Nathaniel L. Jan. 24, 1889 [to S. Watson]
Date 1889-01-24
-
Britton, Nathaniel L. Mar. 26, 1889 [to S. Watson]
Date 1889-03-26
-
Britton, Nathaniel L. May 15, 1889 [to S. Watson]
Date 1889-05-15
-
Britton, Nathaniel L. May 17, 1889 [to S. Watson]
Date 1889-05-17
-
Britton, Nathaniel L. May 21, 1889 [to S. Watson]
Date 1889-05-21
-
Britton, Nathaniel L. May 23, 1889 [to S. Watson]
Date 1889-05-23
-
Britton, Nathaniel L. May 25, 1889 [to S. Watson]
Date 1889-05-25
-
Britton, Nathaniel L. Aug. 19, 1889 [to S. Watson]
Date 1889-08-19
-
Britton, Nathaniel L. Sept. 13, 1889 [to S. Watson]
Date 1889-09-13
-
Britton, Nathaniel L. Sept. 18, 1889 [to S. Watson]
Date 1889-09-18
-
Britton, Nathaniel L. Oct. 21, 1889 [to S. Watson]
Date 1889-10-21
-
Britton, Nathaniel L. Oct. 29, 1889 [to S. Watson]
Date 1889-10-29
-
Britton, Nathaniel L. Dec. 16, 1889 [to S. Watson]
Date 1889-12-16
-
Britton, Nathaniel L. Jan. 6, 1890 [to S. Watson]
Date 1890-01-06
-
Britton, Nathaniel L. Feb. 5, 1890 [to S. Watson]
Date 1890-02-05
-
Britton, Nathaniel L. Feb. 28, 1890 [to S. Watson]
Date 1890-02-28
-
Britton, Nathaniel L. Mar. 4, 1890 [to S. Watson]
Date 1890-03-04
-
Britton, Nathaniel L. Mar. 12, 1890 [to J. Gray]
Date 1890-03-12
-
Britton, Nathaniel L. Apr. 29, 1890 [to S. Watson]
Date 1890-04-29
-
Britton, Nathaniel L. May 19, 1890 [to S. Watson]
Date 1890-05-19
-
Britton, Nathaniel L. June 11, 1890 [to S. Watson]
Date 1890-06-11
-
Britton, Nathaniel L. June 17, 1890 [to J. Gray]
Date 1890-06-17
-
Britton, Nathaniel L. June 30, 1890 [to S. Watson]
Date 1890-06-30
-
Britton, Nathaniel L. July 5, 1890 [to S. Watson]
Date 1890-07-05
-
Britton, Nathaniel L. Jan. 8, 1891 [to M. L. Fernald]
Date 1891-01-08
-
Britton, Nathaniel L. Jan. 21, 1891 [to S. Watson]
Date 1891-01-21
-
Britton, Nathaniel L. Mar. 23, 1891 [to S. Watson]
Date 1891-03-23
-
Britton, Nathaniel L. May 7, 1891 [to S. Watson]
Date 1891-05-07
-
Britton, Nathaniel L. June 1, 1891 [to S. Watson]
Date 1891-06-01
-
Britton, Nathaniel L. June 5, 1891 [to S. Watson]
Date 1891-06-05
-
Bromfield, Eliza undated
Date 1842-1904
-
Bromfield, William A. Sept. 7, 1848
Date 1848-09-07
-
Brongniart, Adolphe T. Mar. 10, 1858
Date 1858-03-10
-
Brongniart, Adolphe T. Nov. 30, 1858
Date 1858-11-30
-
Brongniart, Adolphe T. Apr. 15, 1860
Date 1860-04-15
-
Brongniart, Adolphe T. Feb. 5, 1861
Date 1861-02-05
-
Brongniart, Adolphe T. Feb. 25, 1865
Date 1865-02-25
-
Brongniart, Adolphe T. June 7 [no year]
Date 06-07
-
Brooks, William K. Jan. 4, 1884
Date 1884-01-04
-
Brotherus, Victor F. May 5, 1891 [to W. G. Farlow] [postcard]
Date 1891-05-05
-
Brotherus, Victor F. June 4, 1875
Date 1875-06-04
-
Brown, Addison Feb. 15, 1881 [to H. C. Jones]
Date 1881-02-15
-
Brown, Franklin Oct. 4, 1886
Date 1886-10-04
-
Browne, Walter R. Dec. 22, 1880
Date 1880-12-22
-
Browne, Walter R. Dec. 22, 1880 [enclosure]
Date 1880-12-22
-
Browne, Walter R. Jan. 1881
Date 1881-01
-
Browne, Walter R. Jan. 31, 1882
Date 1882-01-31
-
Browne, Walter R. July 21, 1884
Date 1884-07-21
-
Browne, Walter R. [1884]
Date 1884
-
Browne, Effie L. Nov. 9, 1884
Date 1884-11-09
-
Browne, Effie L. Nov. 9, 1884 [enclosed memorial]
Date 1884-11-09
-
Bruhin, Thomas A. Feb. 21, 1870
Date 1870-02-21
-
Bruhin, Thomas A. July 1, 1878
Date 1878-07-01
-
Bryce, James June 25 [no year]
Date 06-25
-
Bryce, James June 28 [no year]
Date 06-28
-
Bryce, James July 31 [no year]
Date 07-31
-
Bryce, James Dec. 11 [no year]
Date 12-11
-
Buchenau, Franz G. Jan. 20, 1880 [to S. Watson]
Date 1880-01-20
-
Buchenau, Franz G. Apr. 10, 1886
Date 1886-04-10
-
Buchenau, Franz G. Nov. 27, 1887 [to S. Watson]
Date 1887-11-27
-
Buchenau, Franz G. Aug. 27, 1888 [to S. Watson]
Date 1888-08-27
-
Buchenau, Franz G. Feb. 3, 1892 [to S. Watson]
Date 1892-02-03
-
Buchinger, Jean D. Jan. 3, 1882
Date 1882-01-03
-
Buckley, Samuel B. Apr. 6, 1843
Date 1843-04-06
-
Buckley, Samuel B. Apr. 11, 1843
Date 1843-04-11
-
Buckley, Samuel B. Nov. 18, 1856
Date 1856-11-18
-
Buckley, Samuel B. Dec. 2, 1856
Date 1856-12-02
-
Buckley, Samuel B. Apr. 6, 1858
Date 1858-04-06
-
Buckley, Samuel B. Apr. 25, 1858
Date 1858-04-25
-
Buckley, Samuel B. May 25, 1858
Date 1858-05-25
-
Buckley, Samuel B. May 30, 1858
Date 1858-05-30
-
Buckley, Samuel B. Sept. 24, 1858
Date 1858-09-24
-
Buckley, Samuel B. Nov. 20, 1858
Date 1858-11-20
-
Buckley, Samuel B. Jan. 25, 1859
Date 1859-01-25
-
Buckley, Samuel B. Feb. 5, 1859
Date 1859-02-05
-
Buckley, Samuel B. Mar. 19, 1862
Date 1862-03-19
-
Buckley, Samuel B. Mar. 23, 1862
Date 1862-03-23
-
Buckley, Samuel B. Mar. 26, 1862
Date 1862-03-26
-
Buckley, Samuel B. Apr. 7, 1862
Date 1862-04-07
-
Buckley, Samuel B. Apr. 17, 1862
Date 1862-04-17
-
Buckley, Samuel B. undated
Date 1842-1904
-
Watson, Sereno undated list [on letter from P. J. Berckmans]
Date 1842-1904
-
Bumstead, Freeman J. Mar. 8, 1871
Date 1871-03-08
-
Bunbury, Charles J. Mar. 3, 1884
Date 1884-03-03
-
Bunge, Alexander von Mar. 18, 1864
Date 1864-03-18
-
Burdick, Justin H. May 15, 1884
Date 1884-05-15
-
Burdick, Justin H. Apr. 29, 1885 [to S. Watson]
Date 1885-04-29
-
Bureau, L. Édouard Feb. 23, 1874
Date 1874-02-23
-
Bureau, L. Édouard Aug. 27, 1874
Date 1874-08-27
-
Bureau, L. Édouard Jan. 15, 1880
Date 1880-01-15
-
Bureau, L. Édouard undated fragment
Date 1842-1904
-
Bureau, L. Édouard Feb. 12, 1895
Date 1895-02-12
-
Bureau, L. Édouard May 7, 1901
Date 1901-05-07
-
Bureau, L. Édouard Nov. 22, 1901
Date 1901-11-22
-
Bureau, L. Édouard Nov. 7, 1902
Date 1902-11-07
-
Burgess, R. Oct. 25, 1891 [to S. Watson]
Date 1891-10-25
-
Burgess, T. J. W. Nov. 15, 1888 [to J. Gray]
Date 1888-11-15
-
Burgess, T. J. W. Feb. 4, 1890 [to S. Watson]
Date 1890-02-04
-
Burgess, T. J. W. Aug. 18, 1891 [to S. Watson]
Date 1891-08-18
-
Büse, Lodewijk H. July 4, 1864
Date 1864-07-04
-
Büse, Lodewijk H. July 31, 1872
Date 1872-07-31
-
Büse, Lodewijk H. Dec. 20 [no year]
Date 12-20
-
Bush, Benjamin F. June 8, 1889 [to S. Watson]
Date 1889-06-08
-
Bush, Benjamin F. Sept. 1, 1889 [to S. Watson]
Date 1889-09-01
-
Bush, Benjamin F. Feb. 10, 1890 [to S. Watson]
Date 1890-02-10
-
Bush, Benjamin F. Aug. 18, 1891 [to S. Watson]
Date 1891-08-18
-
Bush, Benjamin F. Sept. 13, 1891 [to S. Watson]
Date 1891-09-13
-
Bush, Benjamin F. Sept. 16, 1891 [to S. Watson]
Date 1891-09-16
-
Bush, Benjamin F. Jan. 28 [no year] [to S. Watson]
Date 01-28
-
Butz, George C. Aug. 12, 1890 [to S. Watson]
Date 1890-08-12