Rhopalocera Europæ, descripta et delineata = The butterflies of Europe, described and figured - Lang, Henry C. 1909 (L. Reeve, 1884)

The Rhopalocera of Java - Piepers, M. C. (Marinus Cornelis), 1835 -1919 (M. Nijhoff; [etc., etc.], 1913)

Richard Schomburgk's travels in British Guiana, 1840-1844 - Schomburgk, Richard, 1811 -1891 ("Daily Chronicle" Office, 1922)

Richardiana (Tropicalia, 2003)

Rivista italiana di paleontologia - Fornasini, Carlo. (Rivista italiana di paleontologia, 1895)

Rivista italiana di paleontologia - Fornasini, Carlo. (Rivista italiana di paleontologia, 1896)

Rivista italiana di paleontologia - Fornasini, Carlo. (Rivista italiana di paleontologia, 1898)

Rivista italiana di paleontologia - Fornasini, Carlo. (Rivista italiana di paleontologia, 1901)

Rivista italiana di paleontologia - Fornasini, Carlo. (Rivista italiana di paleontologia, 1907)

Rivista italiana di scienze naturali : periodico mensile premiato alle esposizioni nazionali di Palermo e di Milano ed a quella internazionale di Chicago (Ufficio, 1888)

Robert Veitch & Son's catalogue of seeds and plants for spring 1899 : importers, growers and dealers in seeds, plants, bulbs and flowers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Robert Veitch & Son, 1899)

Rock plants and iris - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Carl Starker, 1934)

Rock plants and iris - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Carl Starker Gardens, 1936)

Rock plants and iris - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Carl Starker, 1937)

Rock plants and iris : 1930 descriptive list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Carl Starker, 1930)

Rock plants and iris : 1931 descriptive list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Carl Starker, 1931)

Rock plants and iris : 1932 descriptive list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Carl Starker, 1932)

Rock plants and iris, 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Carl Starker, 1933)

Rock plants and iris : descriptive list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Carl Starker, 1929)

Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro (Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 1935)

Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro (Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 1950)

Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro (Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 2010)

Root growing and the cultivation of hops - Roland, Arthur. (Chapman & Hall, 1887)

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

Roses : also fruit trees, trees, shrubs, herbaceous and rock plants, garden seeds and bulbs : catalogue 1935-36 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Chaplin Bros. Ltd, 1935)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1860)

Rynveld's bulbs : wholesale catalog, Autumn 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F. Rynveld & Sons, 1930)

Rynveld's bulbs : wholesale price list : autumn 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F. Rynveld & Sons, 1926)

Rynveld's bulbs : wholesale price list : fall 1927 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F. Rynveld & Sons, 1927)

Rynveld's bulbs : wholesale price list : fall 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F. Rynveld & Sons, 1928)

Rynveld's, "none better grown" : fall 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F. Rynveld & Sons, 1931)

Sanders' orchid guide, rev. (1927) ed. containing all the best known species, varieties, and natural hybrids of orchids in cultivation. Their native countries, descriptions, seasons of flowering, best methods of cultivation, temperatures, &c. ... - Sanders, St. Albans. (Sanders, 1927)

Sargentia :a continuation of the contributions from the Arnold Arboretum of Harvard University - Arnold Arboretum. (The Arnold Arboretum of Harvard University, 1949)

Schedulae Orchidianae. no. 1-10 - Ames, Oakes, 1874 -1950 ([Earnshaw Press Corp.], 1922)

Schedulae Orchidianae. no. 1-10 - Ames, Oakes, 1874 -1950 ([Earnshaw Press Corp.], 1930)

Die schmetterlinge von Europa - Ochsenheimer, Ferdinand, 1767 -1822 (Fleischer, 1807)

Science - American Association for the Advancement of Science. ([s.n.], 1891)

Science in Arcady - Allen, Grant, 1848 -1899 (Lawrence & Bullen, 1892)

Science in Arcady - Allen, Grant, 1848 -1899 (Lawrence & Bullen, 1897)

The Scientific monthly - American Association for the Advancement of Science. (American Association for the Advancement of Science [etc.])

Scott's flowering bulbs for fall 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (David J. Scott, 1935)

Seal and salmon fisheries and general resources of Alaska - Jordan, David Starr, 1851 -1931 (Govt. Printing Office, 1898)

The seal-islands of Alaska - Elliott, Henry Wood, 1846 -1930 (Govt. Print. Off, 1881)

The seal-islands of Alaska - Elliott, Henry Wood, 1846 -1930 (G.P.O, 1881)

Seed annual - Fottler, Fiske, Rawson Co. (Fottler, Fiske, Rawson Co, 1915)

Seed annual - Fottler, Fiske, Rawson Co. (Fottler, Fiske, Rawson Co, 1921)

Seed trade buyer's guide & directory, 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Seed World, 1933)

Seed trade buyer's guide & directory, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (1935)

Seeds and bulbs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.M. Thorburn & Co, 1918)

Seeds, bulbs, plants : 1925 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (S.V. Pike, 1925)

A select list of bearded irises and newer daffodils - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Grant E. Mitsch, 1937)

Selected bulbs for autumn of 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hart & Vick, 1934)

Selection of choice peonies : August, 1928 [price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Onarga Nursery Company, 1928)

La Semaine horticole ([s.n.], 1898)

Service and regulatory announcements - United States. Office of Experiment Stations. (U.S. G.P.O, 1933)

Service and regulatory announcements - United States. Office of Experiment Stations. (U.S. G.P.O, 1937)

Sex - Thomson, J. Arthur (John Arthur), 1861 -1933 (Williams & Norgate, 1914)

sheng wu ming cheng he sheng wu xue shu yu de ci yuan - Jaeger, Edmund C. (Edmund Carroll) 1887 -1983 (ke xue chu ban she, 1979)

Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe. Abt. 1, Mineralogie, Botanik, Zoologie, Anatomie, Geologie und Paläontologie - Kaiserl. Akademie der Wissenschaften in Wien. Mathematisch-Naturwissenschaftliche Klasse. (K.-K. Hof- und Staatsdruckerei in Commission bei Carl Gerold's Sohn, 1863)

Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe. Abt. 1, Mineralogie, Botanik, Zoologie, Geologie und Paläontologie - Kaiserl. Akademie der Wissenschaften in Wien. Mathematisch-Naturwissenschaftliche Klasse. (K.-K. Hof- und Staatsdruckerei in Commission bei C. Gerold's Sohn, 1880)

Slate's guide to gardening and illustrated catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Slate Seed Company, 1922)

SOME FLOWERING BULBS - Canada. Department of Agriculture. (1928)

Special and import prices for ... - Elliott, J. Wilkinson (Firm) (J. Wilkinson Elliott, 1910)

Special and import prices for Fall of 1909 : [flowers by the ten thousand] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Elliott Nursery Company, 1909)

Special daffodil list, 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Berkeley Nurseries, 1937)

Special fall list : stock suitable for September planting - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Cole Nursery Co, 1926)

Special import prices : fall bulbs and seeds for summer planting - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (James Vick, 1924)

Special import prices : fall bulbs and seeds for summer planting - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (James Vick, 1922)

Special import prices : fall bulbs and seeds for summer planting - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (James Vick, 1921)

Special import prices fall bulbs and seeds for summer planting - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (James Vick, 1923)

Special import prices, good until July 15th : season 1925 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens, 1925)

Special import prices on advance orders of fall bulbs and price list of seasonable flower seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (James Vick, 1927)

Special import prices on advance orders of fall bulbs and price list of seasonable flower seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (James Vick, 1928)

Special money saving price list on advance orders of bulbs and flower seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (James Vick, 1929)

Special offer for Fall 1920 delivery F. O. B. Holland Warehouse - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (K. Van Bourgondien & Sons, 1920)

Special peony and Holland bulb issue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Cottage Gardens, 1925)

Species général des coléoptères de la collection de m. le comte Dejean ... - Aubé, Charles, 1802 -1869 (Mequignon-Marvis, 1831)

Sports & anecdotes of bygone days in England, Scotland, Ireland, Italy and the Sunny South - Birch-Reynardson, Charles Thomas Samuel, 1810 -1889 (Chapman & Hall, limited, 1887)

Spring flowering bulbs : autumn of 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Johnson's Seed Store, 1928)

Spring flowering bulbs for autumn planting. 1919 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Weeber & Don, 1919)

Spring-flowering bulbs for planting this month and next - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Alexander Forbes & Co, 1930)

Spring flowering bulbs for the autumn of 1924 : narcissus, tulips, crocus, hyacinths - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Johnson's Seed Store, 1924)

Spring flowering bulbs for the autumn of 1926 : narcissus, tulips, crocus, hyacinths - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Johnson's Seed Store, 1926)

Spring flowering bulbs for the autumn of 1927 : narcissus, tulips, crocus, hyacinths - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Johnson's Seed Store, 1927)

Spring forecasts : bulbs for autumn planting, 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Stumpp & Walter Co, 1933)

The standard cyclopedia of horticulture; a discussion, for the amateur, and the professional and commercial grower, of the kinds, characteristics and methods of cultivation of the species of plants grown in the regions of the United States and Canada for ornament, for fancy, for fruit and for vegetables; with keys to the natural families and genera, descriptions of the horticultural capabilities of the states and provinces and dependent islands, and sketches of eminent horticulturists - Bailey, L. H. (Liberty Hyde), 1858 -1954 (The Macmillan Co.; [etc., etc.], 1916)

The standard cyclopedia of horticulture; a discussion, for the amateur, and the professional and commercial grower, of the kinds, characteristics and methods of cultivation of the species of plants grown in the regions of the United States and Canada for ornament, for fancy, for fruit and for vegetables; with keys to the natural families and genera, descriptions of the horticultural capabilities of the states and provinces and dependent islands, and sketches of eminent horticulturists - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1919)

The standard dictionary of facts, history, language, literature, biography, geography, travel, art, government, politics, industry, invention, commerce, science, education, natural history, statistics and miscellany - Ruoff, Henry Woldmar, 1867 - (Frontier Press, 1908)

Standardized plant names; a catalogue of approved scientific and common names of plants in American commerce - Olmsted, Frederick Law, 1870 -1957 (1923)

Stein's Orchideenbuch. Beschreibung, Abbildung und Kulturanweisung der empfehlenswertesten Arten. Mit 184 in den Text gedruckten Abbildungen - Stein, Berthold. (P. Parey, 1892)

The Storrs & Harrison Co. : [catalog] - Storrs & Harrison Co. (The Company, 1919)

Structure des orchidées ; notes d'une étude - Rodrigues, J. Barbosa (João Barbosa), 1842 -1909. (Typographie Nationale, 1883)

Stuttgarter Beiträge zur Naturkunde. Serie B, Geologie und Paläontologie - Staatliches Museum für Naturkunde in Stuttgart. (Staatliches Museum für Naturkunde, 1980)

Stuttgarter Beiträge zur Naturkunde. Serie B, Geologie und Paläontologie - Staatliches Museum für Naturkunde in Stuttgart. (Staatliches Museum für Naturkunde, 2000)

Subalpino : giornale di scienze, lettere ed arti : Rivista Italiana (1839)

Sur les insectes fossiles du Calcaire Lithographique de la Bavière, qui se trouvent au Musée Teyler - Weyenbergh, H. (Hendrik), 1842 -1885 (Les héritiers Loosjes, 1869)

Symbolae Antillanae,seu, Fundamenta florae Indiae Occidentalis - Urban, Ignaz, 1848 -1931 (Fratres Borntraeger ;Paul Klincksieck, 1909)

Symbolae Antillanae,seu, Fundamenta florae Indiae Occidentalis - Urban, Ignaz, 1848 -1931 (Fratres Borntraeger ;Paul Klincksieck, 1898)

Synonymia botanica locupletissima generum, sectionum vel subgenerum ad finem anni 1858 promulgatorum : In forma conspectus systematici totius regni vegetabilis schemati Endlicheriano adaptati - Pfeiffer, Louis (Ludwig Georg Karl), 1805 -1877 (Sumptibus T. Fischer, 1870)

A synonymic catalogue of diurnal Lepidoptera - Kirby, W. F. (William Forsell), 1844 -1912 (J. Van Voorst, 1871)

A synonymic catalogue of Lepidoptera Heterocera. (Moths) : Vol. 1. Sphinges and bombyces - Kirby, W. F. (William Forsell), 1844 -1912 (Gurney & Jackson, 1892)

A synonymic catalogue of Neuroptera Odonata, or dragon-flies. With an appendix of fossil species - Kirby, W. F. (William Forsell), 1844 -1912 (Gurney & Jackson; [etc. etc.], 1890)

Synopsis of the contents of the British Museum - British Museum ([the Museum], 1809)

Synopsis of the contents of the British Museum - British Museum (Printed by Cox, Son, and Baylis, 1809)

Synopsis plantarum; seu, Enumeratio systematica plantarum plerumque adhuc cognitarum cum differentiis specificis et synonymis selectis ad modum Persoonii elaborata - Dietrich, David Nathanael Friedrich, 1800 -1888 (B. F. Voigtii, 1839)

[Syracuse Nurseries materials] - Syracuse Nurseries. (Syracuse Nurseries, 1862)

Systematisches Verzeichniss der Macrolepidopteren von Nord-Amerika - Gerhard, Bernhard. (1878)

Tableaux synoptiques des lépidoptères d'Europe, contenant la description de tous les lépidoptères connus jusqu'à ce jour. Tome 1, Diurnes - Guenée, A. (Achille), 1809 -1880 (Méquignon-Marvis Père et Fils, 1835)

Taschenwörterbuch für Botaniker und alle Freunde der Botanik : enthaltend die botanische Nomenklatur, Terminologie und Litteratur nebst einem alphabetischen Verzeichnisse aller wichtigen Zier-, Treibhaus- und Kulturpflanzen, sowie derjenigen der heimischen Flora - Glaser, L. (Ludwig), 1818 -1898 (Weigel, 1885)

The ten-ten fall book for 1921 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Julius Roehrs Co.], 1921)

The ten-ten fall book for 1922 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Julius Roehrs Co.], 1922)

The ten-ten fall planting book for 1923 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Julius Roehrs Co.], 1923)

The ten-ten import bulb book for 1921 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Julius Roehrs Co.], 1921)

The ten-ten import bulb book for 1922 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Julius Roehrs Co.], 1922)

The ten-ten import bulb book for 1923 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Julius Roehrs Co.], 1923)

The ten-ten import bulb book for 1924 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Julius Roehrs Co.], 1924)

Ten years' wild sports in foreign lands : or, Travels in the eighties - Seton-Karr, H. W. (Heywood Walter), 1859 -1938 (Chapman and Hall, 1889)

Ten years' wild sports in foreign lands; or, Travels in the eighties - Seton-Karr, H. W. (Heywood Walter), 1859 -1938 (Chapman, 1889)

Thesaurus ornithologiae : Repertorium der gesammten ornithologischen Literatur und Nomenclator sämmtlicher Gattungen und Arten der Vögel, nebst Synonymen und geographischer Verbreitung - Giebel, C. (Christoph), 1820 -1881 (Brockhaus, 1877)

Thorburn's bulbs. 1919 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.M. Thorburn & Company, 1919)