1843. "The Report of Nicollet's Expedition" was published this year, with an appendix by Dr. Torrey, containing an account of the plants collected.
1845. "Catalogue of Plants collected by Lieutenant Fremont in an Expedition to the Rocky Mountains;" and, in the same volume, (Fremont's Report) "Descriptions of some New Genera and Species of Plants collected in Captain J. C. Fremont's Exploring Expedition to Oregon and North California, in the Years 1843 and 1844. By John Torrey and J. C. Fremont."
1848. "Appendix to Emory's Reconnaissance," giving an account of the plants, many of which were new, collected in this expedition.
1852. "Catalogue of Plants collected by Captain Howard Stansbury in his Expedition to the Valley of the Great Salt Lake of Utah."
1853. "Plantæ Fremontianæ; or, Descriptions of Plants collected by Colonel J. C. Fremont in California."—(Smithsonian Contributions, vol. vi.)
1853. "On the Darlingtonia Californica, a New Pitcher-plant from Northern California.—(Smithsonian Contributions, loc. cit.)
1853. "Observations on the Batis Maritima of Linmeus."—(Smithsonian Contributions, loc. cit.)
1853. "Description of Plants collected in Captain Marcy's Exploration of the Red River of Louisiana."
1854. "Botany of Captain Sitgreaves's Expedition to the Zuni and Colorado Rivers."
1855-'60. These years saw the publication of the Reports of the Pacific Railroad Survey. As the reports were not published in the order in which they were written, we enumerate them in the succession in which they occur in the volumes:
Vol. II. "Botany of Captain Pope's Expedition." "Botany of Lieutenant Beckwith's Expedition." "Botany of Captain Gunnison's Survey." In these three memoirs Prof. Asa Gray was joint author.
Vol. IV. "Botany of Whipple's Expedition."
Vol. V. "Botany of Lieutenant Williamson's Report."
Vol. VIII. "Botany of Lieutenant Parke's Expedition."
1859. "Botany of the Mexican Boundary Survey." This is by far the most voluminous of all the Government Reports.
1861. "Botany of Lieutenant Ives's Colorado Exploring Expedition."
We do not include here the contributions of Dr. Torrey to the memoirs of Prof. Gray and others, for which he frequently elaborated genera and families; nor do we enumerate his minor contributions to the sciences.
Nearly all of these memoirs are illustrated by engravings, and some of them profusely so. Dr. Torrey rarely attempted to give the portrait of a plant, leaving that to the professional draughtsman; but in all the sketches showing minute structure—that which gave the illustrations
