Douglas, David, 1799-1834 |
An account of a new species of Pinus, native to California / in a letter to Joseph Sabine by David Douglas ; communicated by Mr. Sabine ; read November 6, 1827 |
In: Transactions of the Linnean society Vol. 15 (1827), p. 497-500 |
Richardson, John, 1787-1865 |
Account of the expedition under Captain Franklin, and of the vegetation of North America / in extracts of letters from Dr. Richardson, Mr. Drummond, and Mr. Douglas. |
In: Edinburgh journal of science Vol. 6 (1827), p. 107-117 |
Douglas, David, 1799-1834 |
Description of a new species of the genus Pinus / by David Douglas ; communicated by the Horticultural Society ; read April 3, 1832 |
In: Transactions of the Linnean society Vol. 16 (1833), p. 747-749 |
Douglas, David, 1799-1834 |
Observations on some species of the genera Tetrao and Ortyx, natives of North America : with descriptions of four new species of the former, and two of the latter genus / by David Douglas ; read December 16, 1828 |
In: Transactions of the Linnean society Vol. 16 (1833), p. 133-149 |
Douglas, David, 1799-1834 |
Observations on the Vultur californianus of Shaw / by David Douglas. |
In: Zoological journal Vol. 4 (1829), p. 328-330 |
Douglas, David, 1799-1834 |
Observations on two undescribed species of North American Mammalia / by David Douglas. |
In: Zoological journal Vol. 4 (1829), p. 330-332 |