Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1854)

Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1857)

Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1853)

Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1859)

Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1858)

Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1860)

Reports of the Microscopical Society of West Chester, Penna. : on the Act of Assembly of said state awarding a premium for the destruction of hawks, owls, minks, weasels, etc., etc - West Chester Microscopical Society. ("Republican" Book and Job Dept, 1887)

Reports of the Princeton University Expeditions to Patagonia, 1896-1899. J. B. Hatcher in charge - Princeton University Expeditions to Patagonia 1896 -1899 (The University, 1905)

Reports on the herbaceous plants and on the quadrupeds of Massachusetts - Dewey, Chester, 1784 -1867 (Folsom, Wells, and Thurston, 1840)

Reports on the progress of zoology and botany, 1841, 1842 - Link, Heinrich Friedrich, 1767 -1851 (Printed for the Ray Society, 1845)

Reports on zoology for 1843, 1844 - Ray Society. (Printed for the Ray society, 1847)

A reprint of the North American zoology, by George Ord. Being an exact reproduction of the part originally compiled by Mr. Ord for Johnson & Warner, and first published by them in their 2d American ed. of Guthrie's geography, in 1815. Taken - Ord, George, 1781 -1866 (Pub. by the editor, 1894)

Rerum medicarum Novae Hispaniae thesaurus, seu, Plantarum animalium mineralium Mexicanorum historia - Colonna, Fabio, 1567 -1650 (Ex typographeio Vitalis Mascardi, 1651)

Resa uti Europa, Africa, Asia : förrättad åren 1770-1779 - Thunberg, Carl Peter, 1743 -1828 (Tryckt hos directeur. Joh. Edman, 1793)

The resources of California: comprising agriculture, mining, geography, climate, commerce, &c., and the past and future development of the State - Hittell, John S. (John Shertzer), 1825 -1901 (A. Roman, 1866)

The resources of California : comprising agriculture, mining, geography, climate, commerce, &c., and the past and future development of the state - Hittell, John S. (John Shertzer), 1825 -1901 (A. Roman, 1863)

The resources of California: comprising agriculture, mining, geography, climate, &c., and the past and future development of the state - Hittell, John Shertzer, 1825 -1901 (A. Roman and company, 1869)

The resources of California, comprising the society, climate, salubrity, scenery, commerce and industry of the state - Hittell, John S. (John Shertzer), 1825 -1901 (A. Roman & company, 1874)

Results of a biological reconnoissance of south-central Idaho - Stejneger, Leonhard, 1851 -1943 (Govt. Print. Off, 1891)