Oesterreichische botanische Zeitschrift (A. Skofitz, 1915)

Oesterreichisches botanisches Wochenblatt ([L.W. Seidel], 1854)

Offer of peonies for commercial gardens - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lee R. Bonnewitz, 1922)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1900)

Okens Lehrbuch der Naturgeschichte - Oken, Lorenz, 1779 -1851 (Bei Carl Heinrich Reclam, 1815)

On growth and form - Thompson, D'Arcy Wentworth, 1860 -1948 (University press, 1917)

On growth and form - Thompson, D'Arcy Wentworth, 1860 -1948 (University Press, 1945)

On the elaioplasts in mono- and dicotyledonous plants. –On special cellular bodies which form Anthocyanine. –On a special cellular body found in two orchids - Politis, Ioannes. (1914)

On the senses, instincts, and intelligence of animals, with special reference to insects - Lubbock, John, Sir, 1834 -1913 (K. Paul, Trench, 1889)

On the senses, instincts, and intelligence of animals : with special reference to insects - Lubbock, John, Sir, 1834 -1913 (Kegan Paul, Trench & Co, 1889)

One-hundred and fifth annual catalogue of high class seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.M. Thorburn & Co, 1906)

One-hundred and ninth annual catalogue of high class seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.M. Thorburn & Co, 1910)

Opisthobranch newsletter - Long, Steven J. (S.J. Long, 1981)

Opuscules entomologiques - Mulsant, Martial Étienne, 1797 -1880 (L. Maison, 1853)

Opuscules entomologiques - Mulsant, Martial Étienne, 1797 -1880 (L. Maison, 1875)

The Orchadian - Australasian Native Orchid Society (The Society, 1968)

The orchid-grower's manual, containing descriptions of the best species and varieties of orchidaceous plants in cultivation ... - Williams, Benjamin Samuel, 1822 -1890 (Victoria and Paradise nurseries, 1894)

The orchid hybrids. Second supplement - Hansen, Geo. (George), 1863 -1908 (Geo. Hansen, 1897)

The orchid hybrids enumeration and classification of all hybrids of orchids published up to October 15, 1895 - Hansen, Geo. (George), 1863 -1908 (Dulau, 1895)

The Orchid review (Orchid Review ltd.], 1902)

The orchid-stud book : an enumeration of hybrid orchids of artificial origin ... : with an historical introduction ... and a chapter on hybridising and raising orchids from seed - Hurst, C. C. 1870 -1947 (F. Leslie, 1909)

Orchidophile; journal des amateurs d'orchideés - Godefroy-Lebeuf, A. (Alexandre), 1844 -1903 (1889)

Orchids - O'Brien, James (Frederick A. Stokes co, 1911)

Orchids and greenhouse plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Julius Roehrs Co, 1916)

Orchids - O'Brien, James (T.C. & E.C. Jack, 1911)

Orchids - O'Brien, James (T. C. & E. C. Jack, 1911)

Orchids for everyone - Curtis, Charles H. (J.M. Dent, 1910)

Orchids, stove and greenhouse plants : select nursery stock - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Julius Roehrs Company, 1913)

Orchids: their culture and management - Watson, William, 1858 -1925 (L. U. Gill, 1903)

Ornamental gardening in Florida - Simpson, Charles Torrey, 1846 -1932 (The author, 1916)

Ornamental trees, evergreens, shrubs, roses, bulbs and plants for the garden : 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (A.T. De La Mare Co., Horticultural Printers, 1928)

Ornamental trees, evergreens, shrubs, roses, bulbs and plants for the garden : 1927 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Danker Florist, 1927)

Ornamentals [1931-32 season] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Glen Saint Mary Nurseries Co, 1931)

Our glory bloom, the peony - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Good & Welsh Peony Farms, Inc, 1928)

Our glory bloom, the peony - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Good & Welsh Peony Farms Inc, 1926)

Our new guide : autumn 1894 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Dingee & Conard Co, 1894)

Our new guide : autumn 1895 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Dingee & Conard Co, 1895)

Our new guide : autumn 1896 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Dingee & Conard Co, 1896)

Our new guide : autumn 1896 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Dingee & Conard Co, 1898)

Our new guide to rose culture - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Dingee & Conard Co, 1902)

Our new guide to rose culture : 1891 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Dingee & Conard Co, 1900)

Our new guide to rose culture : 1894 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Dingee & Conard Co, 1895)

Our new guide to rose culture : 1897 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Dingee & Conard Co, 1897)

Our new guide to rose culture : 1899 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Dingee & Conard Co, 1899)

... Our wholesale trade catalogue : 1929 bulb crop - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F. Rynveld & Sons, 1929)

Out-of-the-ordinary bulbs, 1946 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oakhurst Gardens, 1946)

Out-of-the-ordinary bulbs for 1958 : 30 years of catering to the bulb collector - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oakhurst Gardens, 1958)

Out-of-the-ordinary bulbs for 1958 : 31 years of catering to the bulb collector - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oakhurst Gardens, 1959)

P.A. Latreille scientiarum et artium instituti Gallici ... Genera crustaceorum et insectorum : secundum ordinem naturalem in familias disposita, iconibus exemplisque plurimis explicata - Latreille, P. A. (Pierre André), 1762 -1833 (Apud Amand Knig, Bibliopolam, 1809)

Painesville Nurseries : spring 1916 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Storrs and Harrison Co, 1916)

Palaeontographica (Theodor Fischer, 1912)

Palaeontologische Mittheilungen aus dem Museum des Koeniglich-Bayerischen Staates / von Albert Oppel - Zittel, Karl Alfred von, 1839 -1904 (Ebner & Seubert [et al.], 1862)

Palæozoic fossils - Geological Survey of Canada (Dawson Bros, 1865)

Paléontologie de la France - Archiac, vicomte d' (Etienne Jules Adolphe Desmier), 1802 -1868 (Imprimerie impériale, 1868)

Paléontologie française : description zoologique et géologique de tous les animaux mollusques et rayonnés fossiles de France : comprenant leur application à la reconnaissance des couches - Orbigny, Alcide Dessalines d', 1802 -1857 (Chez l'auteur, 1840)

Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1891)

Le parterre de flore (Pillot, jeune, 1806)

Partial stock list of everything pertaining to horticulture for 1905 now in stock at the Universal Horticultural Establishment - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.A. Manda, 1905)

Partial stock list of everything pertaining to horticulture for 1907 : now in stock at the Universal Horticultural Establishment - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.A. Manda, 1907)

The peerless peony : 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Windy Hill Gardens, 1926)

Peonies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.L. Gumm, 1912)

Peonies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.L. Gunn, 1935)

Peonies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.L. Gunn, 1936)

Peonies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.L. Gunn, 1933)

Peonies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Cedar Hill Nursery, 1923)

Peonies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.L. Gunn, 1922)

Peonies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.L. Gunn, 1923)

Peonies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.L. Gumm, 1927)

Peonies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.L. Gumm, 1924)

Peonies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.L. Gunn, 1928)

Peonies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.L. Gunn, 1929)

Peonies : 1926 descriptive list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lee R. Bonnewitz, 1926)

Peonies 1928 [price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (C.F. Wassenberg, 1928)

Peonies and iris : 1926 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L. C. Glenn, 1926)

Peonies and iris : 1927 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L. C. Glenn, 1927)

Peonies and iris for every purpose [price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (American Rose & Plant Co, 1927)

Peonies and irises - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (C.F. Wassenberg, 1923)

Peonies and irises - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (C.F. Wassenberg Peony and Iris Farms, 1931)

Peonies and irises : 1925 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (C.F. Wassenberg, 1925)

Peonies and irises : 1926 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (C.F. Wassenberg, 1926)

Peonies and irises : 1927 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (C.F. Wassenberg, 1927)

Peonies and irises : 1928 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (C.F. Wassenberg, 1928)

Peonies and irises, 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (C.F. Wassenberg, 1929)

Peonies and irises, 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Indian Spring Farms, Inc, 1929)

Peonies and irises : 1930 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (C.F. Wassenberg, 1930)

Peonies and irises, 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (C.F. Wassenberg Peony and Iris Farms, 1934)

Peonies and irises, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (C.F. Wassenberg Peony and Iris Farms, 1935)

Peonies and irises [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (C.F. Wassenberg, 1924)

Peonies [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Chas. F. Wassenberg, 1926)

Peonies choice and rare, world's best novelties and standards - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Edward P. Schwartz, 1922)

Peonies choice and rare, world's best novelties and standards - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Edward P. Schwartz Peony Gardens, 1929)

Peonies for every purpose - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (American Rose & Plant Co, 1924)

Peonies for every purpose : new price list 1927 enclosed - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (American Rose & Plant Co, 1927)

Peonies for every purpose : [price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (American Rose & Plant Co, 1928)

Peonies for every purpose : season 1930 [price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (American Rose & Plant Co, 1930)

Peonies for every purpose : wholesale price list fall delivery 1924 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (American Rose & Plant Co, 1924)

Peonies for pleasure - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Miss Jessie M. Good, 1917)

Peonies for pleasure - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Good & Reese Co, 1921)

Peonies for pleasure - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Great Western Plant Co, 1922)

"Peonies for pleasure" : price list for fall 1918 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ella V. Baines], 1918)

"Peonies for pleasure" : price list for fall 1919 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Miss Jessie M. Good], 1919)

"Peonies for pleasure" : price list for fall 1919 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Good & Reese Company], 1919)

Peonies for pleasure : price list for Fall 1919 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Baines, 1919)

"Peonies for pleasure" : price list for fall 1924 and Jan. of 1925 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. ([Good & Reese Company], 1924)

"Peonies for pleasure" : price list for fall of 1922 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Great Western Plant Co.], 1922)

"Peonies for profit" : an offering of the world's best varieties to the florist and nursery trade for delivery fall 1927 spring 1928 : wholesale price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Good & Reese Co, 1927)

"Peonies for profit" : offered to the trade for fall delivery, 1923 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Good & Reese Co, 1923)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1923 issue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Newcomb & Gauss, 1923)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1924 issue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Newcomb & Gauss, 1924)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1922 issue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Newcomb & Gauss, 1922)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1925 issue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (T.C. Thurlow's Sons, Inc, 1925)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1926 issue superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (T.C. Thurlow's Sons, Inc, 1926)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1934 issue superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thurlow's and Stranger, Inc, 1934)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1929 issue superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (T.C. Thurlow's Sons, Inc, 1929)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1927 issue superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (T.C. Thurlow's Sons, Inc, 1927)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1935 issue superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thurlow's and Stranger, Inc, 1935)

Peonies, hardy garden perennials, ornamental evergreens, shade trees, shrubs : 1936, superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Cherry Hill Nurseries, 1936)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1931 issue superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thurlow's and Stranger, Inc, 1931)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1933 issue superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thurlow's and Stranger, Inc, 1933)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1930 issue superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thurlows & Stranger, Inc, 1930)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1932 issue superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thurlows and Stranger, Inc, 1932)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1928 issue superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (T.C. Thurlow's Sons, Inc, 1928)

Peonies, iris, hardy bulbs and plants : peonydale - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (C.N. Wettengel, 1923)

Peonies, iris, phlox and other perennials : 1920-1921 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (T.C. Thurlow & Sons, 1921)

Peonies, iris, phlox and other perennials : 1921-1922 issue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Newcomb & Gauss, 1921)

Peonies, irises, gladiolus - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Indian Spring Farms, Inc, 1930)

Peonies, irises, gladiolus - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Indian Spring Farms, Inc, 1931)

Peonies irises selected perennials for every purpose season 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (American Rose and Plant Co, 1931)