Plant physiology and ecology - Clements, Frederic E. (Frederic Edward), 1874 -1945 (Holt, 1907)

Plant physiology and ecology - Clements, Frederic E. (Frederic Edward), 1874 -1945 (H. Holt and company, 1907)

Plant physiology; authorized English translation by R. J. HarveyGibson; supplement incorporating the alterations of the 2d ed. of the German original - Harvey-Gibson, R. J. (Robert John), 1860 -1929 (Clarendon Press, 1913)

Plant relations; a first book of botany - Coulter, John Merle, 1851 -1928 (D. Appleton, 1900)

Plant relations : a first book of botany - Coulter, John Merle, 1851 -1928 (D. Appleton and Company, 1910)

Plant relations; a first book of botany - Coulter, John Merle, 1851 -1928 (Appleton, 1901)

Plant response as a means of physiological investigation - Bose, Jagadis Chandra, Sir, 1858 -1937 (Longmans, Green, 1906)

Plant response as a means of physiological investigation - Bose, Jagadis Chandra, Sir, 1858 -1937 (Longmans, Green and Co, 1906)

Plant sociology; the study of plant communities - Braun-Blanquet, J. (Josias), 1884 -1980 (McGraw-Hill book company, inc, 1932)

Plant structures; a second book of botany - Coulter, John Merle, 1851 -1928 (Appleton, 1906)

Plant structures; a second book of botany - Coulter, John Merle, 1851 -1928 (D. Appleton, 1904)

Plant structures; a second book of botany - Coulter, John Merle, 1851 -1928 (D. Appleton and company, 1900)

Plant studies; an elementary botany - Coulter, John Merle, 1851 -1928 (D. Appleton and Company, 1905)

Plant studies; an elementary botany - Coulter, John Merle, 1851 -1928 (D. Appleton and company, 1900)

Plant studies; an elementary botany - Coulter, John Merle, 1851 -1928 (D. Appleton and Company, 1900)

The Plant world - Plant World Association. (Plant World Association [etc.], 1912)

The Plant world - Plant World Association. (Plant World Association [etc.], 1913)

The Plant world - Plant World Association. (Plant World Association [etc.], 1919)

Plantas Romaniae hucusque cognitas - Kanitz, Ágost, 1843 -1896 (Apud E. Demjén, 1879)

Les plantes - Faideau, Ferdinand, 1862 -1930? (Larousse, 1922)

Plants; a text-book of botany - Coulter, John Merle, 1851 -1928 (D. Appleton and company, 1900)

Plants and man - Hylander, Clarence J. (Clarence John), 1897 - (The Blakiston Company, 1941)

Plants and their uses; an introduction to botany - Sargent, Frederick Leroy, 1863 -1928 (H. Holt and company, 1913)

Plants of Iowa; a preliminary list of the native and introduced plants of the state, not under cultivation - Greene, Wesley. (Bishard brothers, printers, 1907)

Plants of Rhode Island : being an enumeration of plants growing without cultivation in the State of Rhode Island - Bennett, James Lawrence, 1832 -1904 (Providence Press, 1888)

Plants; a text-book of botany - Coulter, John Merle, 1851 -1928 (D. Appleton, 1907)

Plants : a text-book of botany - Coulter, John Merle, 1851 -1928 (D. Appleton and Company, 1907)

The playtime naturalist - Taylor, J. E. (John Ellor), 1837 -1895 (Chatto & Windus, 1889)

Ponds and ditches - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Society for Promoting Christian Knowledge, 1880)

The Popular science monthly - Harry Houdini Collection (Library of Congress) (Popular Science Pub. Co., etc, 1901)

The Popular science monthly - Harry Houdini Collection (Library of Congress) (Popular Science Pub. Co., etc, 1902)

Practical botany - Bergen, Joseph Y. (Joseph Young), 1851 -1917 (Ginn and company, 1911)

Practical botany - Bergen, Joseph Y. (Joseph Young), 1851 -1917 (Ginn, 1911)

Preliminary Biological Survey of Five Lakes in the Buffalo Head Hills. February 1970 - Smith, Alan R., 1943 - (Government of Alberta, 1970)

Preliminary biological survey of Six Lakes in Northern Alberta - Alberta. Dept. of Lands; Forests. Fish; Wildlife Division. Fisheries Section, (Government of Alberta, 1970)

A preliminary biological survey of waters in the Maybelle River, Keane Creek, Crown Creek, Old Fort River and Richardson River drainages - Alberta. Fish; Wildlife Division. (Fish and Wildlife Division, Dept. of Lands and Forests, 1968)

A preliminary catalogue of the flora of New Jersey - Britton, Nathaniel Lord, 1859 -1934 (Office of the Survey, 1881)

... A preliminary catalogue of the flora of New Jersey - Britton, Nathaniel Lord, 1859 -1934 (Office of the survey, 1881)

A preliminary report of the algae of the fresh waters of Connecticut - Webster, Lucia Washburn Hazen (Printed for the State Geological and Natural History Survey, 1908)

Preservation of natural features and scenic views in New York City - Clarke & Rapuano. (The Department, 1974)

President's address and the sectional addresses. 1831 - British Association for the Advancement of Science. (1896)

Principles of botany - Bergen, Joseph Y. (Joseph Young), 1851 -1917 (Ginn, 1906)