Proceedings of the International Congress of Genetics (1906)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1913)

Proceedings of the Southern Pasture and Forage Crop Improvement Conference - United States. Agricultural Research Service. (Agricultural Research Service (Southern Region), U.S. Dept. of Agriculture, 1974)

Prodrome d'une monographie des rosiers de l'Amérique Septentrionale, contenant la description de quinze nouvelles espèces et vingt variétés - Rafinesque, C. S. (Constantine Samuel), 1783 -1840 (Imprimerie de Weissenbruch père, 1820)

Prodrome de la monographie des espèces et variétés connues du genre rosier, divisées selon leur ordre naturel - Thory, Claude-Antoine, 1759 -1827 (P. Dufart, 1820)

Prodrome de la monographie des espèces et variétés connues du genre rosier, divisées selon leur ordre naturel, avec la synonymie, les noms vulgaires, un tableau synoptique, et deux planches gravées en couleur ... - Thory, Claude-Antoine, 1759 -1827 (P. Dufart, 1820)

Prodromo della storia naturale generale e comparata d'Italia ... - Marmocchi, Francesco Constantino, 1805 -1858 (Società editrice fiorentina, 1844)

Prodromus einer Flora des Kronlandes Salzburg und dessen angränzenden Ländertheilen ... - Hinterhuber, Julius, 1810 -1880 (Druck der Oberer'schen Buchdr, 1851)

Prodromus florae Batavae - Nederlandsche Botanische Vereeniging, Leyden. (F.E. MacDonald, 1902)

Prodromus florae batavae; nieuwe lijst der Nederlandsche phanerogamen en vaatkryptogamen - Nederlandsche Botanische Vereeniging (F.E. Macdonald, 1901)

ProHort - Center for Urban Horticulture (1988)

The protection of ornamental plants, 1979-April 1989 : citations from AGRICOLA concerning diseases and other environmental considerations - National Agricultural Library (U.S.) (U.S. Dept. of Agriculture, National Agricultural Library, 1989)

Publication. Field Museum of Natural History. Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1937)

qing dao zhong zi zhi wu ming lu - Chen, Zhuo. (shan dong da xue xue bao er juan si qi)

Quarterly summary of re-identifications, January, February, March 1963 : Summary No. 12 - United States. Bureau of Plant Industry, (New Crops Research Branch, Plant Industry Station, 1960)

Reading Naturalist. Reading - Reading Natural History Society.

The Reading Nursery - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Reading Nursery, 1898)

Reading Nursery [catalogue] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Jacob W. Manning, 1907)

Record of decision and Lake Havasu Field Office approved resource management plan - United States. Bureau of Land Management. (U.S. Department of the Interior, Bureau of Land Management, Lake Havasu Field Office, 2007)

Reference book for home and nature lovers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Glen Terrace Nurseries, 1932)

Reliably hardy evergreens for fall planting : autumn 1915 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (New England Nurseries, 1915)

Reliably hardy evergreens for fall planting : autumn 1916 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (New England Nurseries, 1916)

Repertorium annuum literaturae botanicae periodicae - Bemmelen, J. A. van. (Erven Loosjes, 1873)

Repertorium specierum novarum regni vegetabilis (Selbstverlag des Herausgebers, 1922)

Report / Botanical Society and Exchange Club of the British Isles - Botanical Society; Exchange Club of the British Isles. (1929)

Report of the Entomologist and Botanist - Central Experimental Farm (Ottawa, Ont.) (Government Print. Bureau, 1901)

Report of the Minister of Lands and Forests of the Province of Ontario - Ontario. Dept. of Lands; Forests. (Published by Clarkson W. James, 1947)

Report of the State Entomologist of Connecticut for the year - Connecticut Agricultural Experiment Station. (1901)

Report of the State Entomologist on injurious and other insects of the state of New York - Felt, Ephraim Porter, 1868 -1943 (Weed, Parsons and Co.; University of the State of New York, 1917)

Report of the Third International Conference 1906 on Genetics : hybridisation (the cross-breeding of genera or species), the cross-breeding of varieties, and general plant-breeding - Royal Horticultural Society (Great Britain) (Royal Horticultural Society, 1907)

Report on the herbaceous flowering plants of Massachusetts, arranged according to the natural orders of Lindley, and illustrated chiefly by popular descriptions of their character, properties, and uses - Dewey, Chester, 1784 -1867 (Folsom, Wells, and Thurston, Printers to the University, 1840)

Reports of the Director ... - Dominion Experimental Farms; Stations (Canada) (Experimental Farms, 1900)

Reports of the Survey. Botanical series - Geological; Natural History Survey of Minnesota. (1892)

Reports on the herbaceous plants and on the quadrupeds of Massachusetts : published agreeably to an order of the Legislature by the Commissioners on the Zoological and Botanical Survey of the State - Massachusetts. Zoological; Botanical Survey. (Folsom, Wells, and Thurston, 1840)

Retail price list. seventy-third year of the Greening Nursery Co. No. 73 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Greening Nursery Co, 1923)

The Review of applied entomology. Series A, Agricultural - C.A.B. International. Bureau of Crop Protection (Commonwealth Agricultural Bureaux, etc, 1917)

The Review of applied entomology. Series A, Agricultural - C.A.B. International. Bureau of Crop Protection (Commonwealth Agricultural Bureaux, etc, 1918)

The Review of applied entomology. Series A, Agricultural - C.A.B. International. Bureau of Crop Protection (Commonwealth Agricultural Bureaux, etc, 1920)

Revised price list of young ornamental trees, shrubs and vines for planting in nursery rows - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, 1916)

Revision de plantas vasculares Filipinas :memoria elevada al Escmo. Sr. Ministro de Ultramar - Vidal y Soler, Sebastián, 1842 -1889 (Estab. tipo-litográfico de M. Perze, 1886)

Revue horticole (Librairie agricole de la maison rustique, 1857)

Revue horticole (Librairie agricole de la maison rustique, 1883)

Revue horticole (Librairie agricole de la maison rustique, 1884)

Revue horticole (Librairie agricole de la maison rustique, 1885)

Revue horticole (Librairie agricole de la maison rustique, 1891)

Revue horticole (Librairie agricole de la maison rustique, 1892)

Revue horticole (Librairie agricole de la maison rustique, 1894)

Revue horticole (Librairie agricole de la maison rustique, 1829)

Revue horticole (Librairie agricole de la maison rustique, 1896)

Revue horticole (Librairie agricole de la maison rustique, 1897)

Revue horticole (Librairie agricole de la maison rustique, 1899)

Revue horticole (Librairie agricole de la maison rustique, 1902)

Revue horticole (Librairie agricole de la maison rustique, 1905)

Revue horticole (Librairie agricole de la maison rustique, 1907)

Revue horticole (Librairie agricole de la maison rustique, 1910)

Revue horticole (Librairie agricole de la maison rustique, 1914)

Revue horticole (Librairie agricole de la maison rustique, 1922)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1941)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1952)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1967)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1978)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1980)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1992)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1995)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1996)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1999)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 2000)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 2001)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 2002)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 2003)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 2004)

Rock River area assessment - Illinois. Dept. of Natural Resources. (Illinois Dept. of Natural Resources, 1996)

The roll of the seasons; a book of nature essays - Desmond, G. G. (Duckworth, 1913)

Rosarum monographia, or, A botanical history of roses : to which is added an appendix, for the use of cultivators, in which the most remarkable garden varieties are systematically arranged, with nineteen plates - Lindley, John, 1799 -1865 (Printed for James Ridgeway, 1820)

Rosarum monographia, or, A botanical history of roses : to which is added an appendix for the use of cultivators in which the most remarkable garden varieties are systematically arranged - Lindley, John, 1799 -1865 (Printed for J. Ridgeway, 1820)

The rose-amateur's guide : containing ample descriptions of all the fine leading varieties of roses, regularly classed in their respective families; their history, and mode of culture - Rivers, Thomas, 1798 -1877 (Longmans, Green, 1877)

The rose amateur's guide : containing ample descriptions of all the fine leading varieties of roses regularly classed in their respective families, their history and mode of culture - Rivers, Thomas, 1798 -1877 (Printed for Longman, Brown, Green, and Longmans, 1843)

The rose-amateur's guide: containing ample descriptions of all the fine leading varieties of roses, regularly classed in their respective families. Their history and mode of culture - Rivers, Thomas, 1798 -1877 (Longman, Green, Longman, Roberts, & Green, 1863)

The rose book, a complete guide for amateur rose growers - Easlea, Walter. (Cassell, 1914)

The rose book : a complete guide for amateur rose growers - Easlea, Walter. (Cassell, 1920)

The rose fancier's manual - Gore, Mrs. (Catherine Grace Frances), 1799 -1861 (H. Colburn, 1838)

The rose garden. In two divisions. Division 1. Embracing the history of the rose, the formation of the rosarium, and a detailed account of the various practices adopted in the successful cultivation of this popular flower:...Division II. Containing an arrangement, in natural groups, of the most esteemed varieties ... with full descriptions and remarks on their origin and mode of culture - Paul, William, 1822 -1905 (Sherwood, Gilbert & Piper, 1848)

The rose garden, in two divisions : Division I. Embracing the history of the poetry of the rose, the formation of the rosarium, and a detailed account of the various practices adopted in the successful cultivation of this popular flower : Division II. Containing an arragement, in natural groups, of the most esteemed varieties of roses recognized and cultivated in the various rose gardens, English and foreign; with full description and remarks on their origin and mode of culture - Paul, William, 1822 -1905 (Simpkin, Marshall, Hamilton, Kent & co, 1903)

The Rose :historical and descriptive; gathered from various sources - Shaw, Henry, 1800 -1889 (R. P. Studley & Co, 1882)

The rose: its history, poetry, culture, and classification - Parsons, Samuel Bowne, 1819 -1906 (Wiley & Halsted, 1856)

The rose: its history, poetry, culture, and classification - Parsons, Samuel Bowne, 1819 -1906 (Wiley & Putnam, 1847)

Rose-lovers' opportunity : fall 1924 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bobbink & Atkins, 1924)

The rose manual; containing accurate descriptions of all the finest varieties of roses, properly classed in their respective families, their character and mode of culture, with directions for their propagation, and the destruction of insects - Buist, Robert, 1805 -1880 (The author [etc.], 1844)

The rose manual; containing accurate descriptions of all the finest varieties of roses, properly classed in their respective families, their character and mode of culture, with directions for their propagation, and the destruction of insects - Buist, Robert, 1805 -1880 (The author [etc.], 1851)

The rose, queen of flowers : spring 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Sarcoxie Nurseries, 1932)

Rosen und Sommerblumen : mit einem Anhang über Gruppenpflanzen, Frühlingsblumen, und Balkonpflanzen - Mütze, Wilhelm. (J. J. Weber, 1910)

Der Rosenzüchter, oder die Cultur der Rosen in den Töpfen und im freien Lande - Otto, Adolph. (F. Enke, 1858)

Roses - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bobbink & Atkins, 1925)

Roses - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bobbink & Atkins, 1927)

Roses - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bobbink & Atkins, 1920)

Roses - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bobbink & Atkins, 1929)

Roses - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bobbink & Atkins, 1931)

Roses and hardy perennials : wholesale price list, Autumn 1929 - spring 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Somerset Rose Nursery, 1929)

Roses, and how to grow them; a manual for growing roses in the garden and under glass ... - Barron, Leonard, 1868 -1938 (Doubleday, Page & company, 1905)

Roses by Bobbink & Atkins, 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bobbink & Atkins, 1932)

Roses by Bobbink & Atkins : supplement 1926-1927 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bobbink & Atkins, 1926)

Les roses cultivées à l'Haÿ en 1902 : essai de classement - Gravereaux, Jules. (Rousset, 1902)

Roses for English gardens - Jekyll, Gertrude, 1843 -1932 (C. Scribner's Sons, 1902)

Roses for English gardens - Jekyll, Gertrude, 1843 -1932 ("Country Life,", 1902)

Roses for your garden, or, trellis from New Brunswick Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (New Brunswick Nurseries, 1922)

Les roses : histoire, culture, description - Naudin, Charles, 1815 -1899 (J. Rothschild, Éditeur, 1873)

Roses : novelties and scarce roses ... - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bobbink & Atkins, 1930)

Roses, ornamental trees and shrubs, herbaceous perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bobbink & Atkins, 1935)

Roses : out-of-doors - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Breck-Robinson Nursery Co, 1917)

Roses, perennials, shrubs and evergreens, 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bobbink & Atkins, 1934)

Roses rustiques et leur culture au Canada - Macoun, W. T. (William Tyrrell), 1869 -1933 (s.n, 1912)

The ruffed grouse, its life story, ecology and management - Edminster, Frank C. (Frank Custer), 1903 - (The Macmillan company, 1947)

Rules and regulations of Bureau of Entomology and Plant Quarantine ... Effective June 1, 1938 - United States. Bureau of Entomology; Plant Quarantine. (U.S. Govt. Print. Off, 1939)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1891)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1896)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1897)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1900)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1901)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1906)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1909)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1948)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1950)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1954)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1961)