Notes on the Natural Bridge of VirginiaPublished in Proceedings of The American Philosophical Society, in 1884, in volume 21, issue 116, pages 699-700Created: 2017-01-01, modified: 2017-01-01
Geological Section at St. Mary's, Elk County, PennsylvaniaPublished in Proceedings of The American Philosophical Society, in 1881, in volume 19, issue 108, pages 337-348Created: 2017-01-01, modified: 2017-01-01
Obituary Notice of Charles Albert AshburnerPublished in Proceedings of The American Philosophical Society, in 1890, in volume 28, issue 132, pages 53-59Created: 2017-01-01, modified: 2017-01-01
Description of the Wilcox Spouting Water-WellPublished in Proceedings of The American Philosophical Society, in 1877, in volume 17, issue 100, pages 127-135Created: 2017-01-01, modified: 2017-01-01
On the Constitution of the Bradford Oil SandPublished in Proceedings of The American Philosophical Society, in 1880, in volume 18, issue 105, pages 419-422Created: 2017-01-01, modified: 2017-01-01
Oil Well Records in McKean and Elk Counties, PennsylvaniaPublished in Proceedings of The American Philosophical Society, in 1878, in volume 18, issue 102, pages 9-26Created: 2017-01-01, modified: 2017-01-01
A Measured Section of the Palœozoic Rocks of Central Pennsylvania, from the Top of the Allegheny River Coal Series, down to the Trenton Limestone in the Lower, or Cambro-Silurian SystemPublished in Proceedings of The American Philosophical Society, in 1877, in volume 16, issue 99, pages 519-560Created: 2017-01-01, modified: 2017-01-01
Case 3306. Drosophila Elegans Bock & Wheeler, 1972 (Insecta, Diptera): Proposed Conservation Of The Specific NamePublished in Bulletin of Zoological Nomenclature, in 2004, in volume 61, issue 3, pages 165-166Created: 2011-07-12, modified: 2024-06-03
Anderson, Charles L. Mar. 9, 1864Published in Asa Gray correspondence. Senders A, in 1864, pages 1Created: 2017-06-18, modified: 2017-06-18
Anderson, Charles L. Apr. 14, 1866Published in Asa Gray correspondence. Senders A, in 1866, pages 1-2Created: 2017-06-18, modified: 2017-06-18
Anderson, Charles L. Apr. 25, 1873Published in Asa Gray correspondence. Senders A, in 1873, pages 1-2Created: 2017-06-18, modified: 2017-06-18
Anderson, Charles L. Feb. 15, 1876Published in Asa Gray correspondence. Senders A, in 1876, pages 1-2Created: 2017-06-18, modified: 2017-06-18
Anderson, Charles L. Oct. 15, 1877Published in Asa Gray correspondence. Senders A, in 1877, pages 1-4Created: 2017-06-18, modified: 2017-06-18
Anderson, Charles L. Apr. 29, 1873Published in Asa Gray correspondence. Senders A, in 1873, pages 1-2Created: 2017-06-18, modified: 2017-06-18
Anderson, Charles L. Sept. 2, 1875Published in Asa Gray correspondence. Senders A, in 1875, pages 1-2Created: 2017-06-18, modified: 2017-06-18
Localities of Insects Collected by Charles RobertsonPublished in Psyche: A Journal of Entomology, in 1928, in volume 35, issue 1, pages 61Created: 2016-06-19, modified: 2016-06-19
Curtis, Charles A. Sept. 28, 1867Published in Asa Gray correspondence. Senders Co-Cu, 1826-1891 (inclusive), in 1867, pages 1Created: 2017-06-24, modified: 2017-06-24
AntagonismPublished in Botanical Gazette, in 1918, in volume 65, issue 6, pages 571Created: 2017-03-14, modified: 2017-03-14
AtmometryPublished in Botanical Gazette, in 1918, in volume 66, issue 2, pages 183-184Created: 2017-03-14, modified: 2017-03-14
PermeabilityPublished in Botanical Gazette, in 1918, in volume 66, issue 4, pages 388-390Created: 2017-03-14, modified: 2017-03-14
DesiccationPublished in Botanical Gazette, in 1918, in volume 66, issue 4, pages 390Created: 2017-03-14, modified: 2017-03-14
Adams, Charles F., Jr. Dec. 20, 1882Published in Asa Gray correspondence. Senders A, in 1882, pages 1-2Created: 2017-06-18, modified: 2017-06-18
Kofoid, Charles A. May 25, 1891 [to S. Watson]Published in Asa Gray correspondence. Senders K, 1842-1891 (inclusive), in 1891, pages 1-2Created: 2017-06-24, modified: 2017-06-24
Keffer, Charles A. Mar. 20, 1891 [to S. Watson]Published in Asa Gray correspondence. Senders K, 1842-1891 (inclusive), in 1891, pages 1-2Created: 2017-06-24, modified: 2017-06-24
Pressing PlantsPublished in Botanical Gazette, in 1890, in volume 15, issue 6, pages 155Created: 2017-03-14, modified: 2017-03-14
Nitrogen DeterminationPublished in Botanical Gazette, in 1918, in volume 65, issue 1, pages 119-120Created: 2017-03-14, modified: 2017-03-14
A Gall Upon a MushroomPublished in Botanical Gazette, in 1903, in volume 36, issue 3, pages 223-225Created: 2017-03-14, modified: 2017-03-14
Anderson, Charles L. Dec. 3, 1888 [to J. Gray]Published in Asa Gray correspondence. Senders A, in 1888, pages 1-3Created: 2017-06-18, modified: 2017-06-18
Adams, Charles F., Jr. Oct. 7, 1891 [to S. Watson]Published in Asa Gray correspondence. Senders A, in 1891, pages 1-2Created: 2017-06-18, modified: 2017-06-18
Silurian monograptids from IllinoisPublished in Palaeontology, in 1962, in volume 5, issue 1, pages 59-72Created: 2016-04-23, modified: 2016-04-23
Charles Valentine RileyPublished in Psyche: A Journal of Entomology, in 1895, in volume 7, issue 235, pages 308Created: 2016-06-19, modified: 2016-06-19
A Registering AuxanometerPublished in Botanical Gazette, in 1887, in volume 12, issue 7, pages 150-152Created: 2017-03-14, modified: 2017-03-14
A Horizontal MicroscopePublished in Botanical Gazette, in 1896, in volume 22, issue 1, pages 55-56Created: 2017-03-14, modified: 2017-03-14
Respiration in SucculentsPublished in Botanical Gazette, in 1917, in volume 63, issue 1, pages 83-85Created: 2017-03-14, modified: 2017-03-14
Wildlife ConservationPublished in The Wilson Bulletin, in 1945, in volume 57, issue 1, pages 78Created: 2016-12-04, modified: 2016-12-04
Wildlife ConservationPublished in The Wilson Bulletin, in 1945, in volume 57, issue 2, pages 136Created: 2016-12-04, modified: 2016-12-04
Eliot, Samuel A. and Charles W. Feb. 2, 1885Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1885, pages 1-2Created: 2017-06-24, modified: 2017-06-24
A New StratiomyidPublished in Psyche: A Journal of Entomology, in 1914, in volume 21, issue 5, pages 158-159Created: 2016-06-19, modified: 2016-06-19
A new subapterous encyrtidPublished in Entomological News, in 1906, in volume 17, issue 2, pages 61-62Created: 2009-12-26, modified: 2021-04-05
PETIOLATE CONNATION IN TRIFOLIUM PRATENSEPublished in Torreya, in 1902, in volume 2, issue 12, pages 183-184Created: 2022-12-14, modified: 2022-12-14
A Winter Crow RoostPublished in The Auk, in 1918, in volume 35, pages 405-416Created: 2013-03-07, modified: 2013-03-08
Townsend's 'A Labrador Spring'Published in The Auk, in 1911, in volume 28, pages 129-130Created: 2013-03-08, modified: 2013-03-08
Keeler's Bird Notes AfieldPublished in The Auk, in 1900, in volume 17, pages 180-181Created: 2013-03-08, modified: 2013-03-08
Charles Willison Johnson, 1863–1932Published in Nautilis, in 1933, in volume 46, pages 129-134Created: 2013-09-28, modified: 2013-09-28
Permian foraminifera from British HondurasPublished in Palaeontology, in 1962, in volume 5, issue 2, pages 297-306Created: 2016-04-23, modified: 2016-04-23
A case of "pol-linia."Published in PHYTOLOGIA, in 1934, in volume 1, issue 2, pages 83-88Created: 2016-05-06, modified: 2016-05-06
New DascyllidaePublished in Psyche: A Journal of Entomology, in 1906, in volume 13, issue 5, pages 114-116Created: 2016-06-19, modified: 2016-06-19
Anthemoessa AbruptaPublished in Psyche: A Journal of Entomology, in 1928, in volume 35, issue 1, pages 56-60Created: 2016-06-19, modified: 2016-06-19
Design for a fry trapPublished in Zoologica, in 1960, in volume 45, issue 10, pages 155-160Created: 2016-11-07, modified: 2016-11-07
A Sterile Bryonia HybridPublished in Botanical Gazette, in 1906, in volume 42, issue 1, pages 76Created: 2017-03-14, modified: 2017-03-14