One hundredth anniversary, 1835-1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wilson S. Brower Co., Inc, 1935)

One ounce of tomato seed - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (H.P. Langdon & Son, 1932)

One ounce of tomato seed - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (H.P. Langdon & Son, 1931)

One thousand objects for the microscope - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (F. Warne, 1869)

One thousand objects for the microscope - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Frederick Warne, 1869)

The onion (ICAR-Directorate of Knowledge Management in Agriculture, Indian Council of Agricultural Research, 2015)

Opuscula philolichenum (J. Lendemer, 2016)

Opuscula philolichenum (J. Lendemer, 2018)

Opuscula philolichenum (J. Lendemer, 2019)

Opuscula philolichenum (J. Lendemer, 2021)

The Orchadian - Australasian Native Orchid Society (The Society, 1994)

The Orchadian - Australasian Native Orchid Society (The Society, 1993)

Orchard and farm (Calkins Newspaper Syndicate, 1898)

Orchard and farm (Calkins Newspaper Syndicate, 1922)

Orchid sweet peas : winter orchid flowering, June 1934 to June 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (William Zvolanek & Co, 1934)

Orchid sweet peas : winter orchid flowering, June 1935 to June 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (William Zvolanek & Co, 1935)

Orchis :Monatsschrift der Deutschen Gesellschaft für Orchideenkunde - Dammer, Udo. (1915)

Organologisches, systematisches und Arten-Register zu den Tafeln des Handbuch's der botanischen Terminologie - Bischoff, Gottlieb Wilhelm, 1797 -1854 (J.L. Schrag, 1849)

The origin and development of the pycnidium ... - Kempton, F. E. (Forrest Ellwood), 1883 - (Botanical gazette, 1919)

The origin of life on the earth - Oparin, Aleksandr Ivanovich, 1894 -1980 (Academic Press, 1957)

Ornamental and turf manual - Montana. Environmental Management Division. (The Division, 1986)

Our 36th year, 1949 : plant the best, "Burgess' blizzard belt bran", seeds, bulbs and plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Burgess Seed and Plant Co, 1949)

Our 47th year : 1959 price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Porter & Son, Seedsmen, 1959)

Our seeds grow friends, 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Duthie Seed Company, 1932)

Our seeds grow friends, 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Duthie Seed Company, 1933)

Our seeds grow friends : spring 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J. Chas. McCullough Seed Co, 1933)

Our struggle against pests - United States. Department of Agriculture. Office of Information. (1966)

An outline of the history of phytopathology - Whetzel, Herbert Hice, 1877 -1944 (W.B. Saunders, 1918)

Outlines of British fungology; containing characters of above a thousand species of Fungi, and a complete list of all that have been described as natives of the British Isles - Berkeley, M. J. (Miles Joseph), 1803 -1889 (L. Reeve, 1860)

Outstanding leaders in the tomato world are grown by the House of Glick - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Glick's Seed Farms, 1937)

Overwintering of certain wheat pathogenes - University of Alberta. Department of Field Crops. (University of Alberta, 1930)

Ozonium root rot - Peltier, George L. (George Leo), 1888 - (U.S. Dept. of Agriculture, 1926)

Pacific science - University of Hawaii. (University Press of Hawaii, 1967)

Palaeontology - Palaeontological Association (Palaeontological Association, 1978)

Palmer's seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Palmer Seed Company, 1930)

Palmer's seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Palmer Seed Company, 1931)

Palmer's seeds : 1927 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Palmer Seed Co, 1927)

Palmer's seeds : 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Palmer Seed Company, 1928)

Palmer's seeds : 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Palmer Seed Company, 1929)

Palmer's seeds, 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Palmer Seed Company, 1932)

Palmer's seeds, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Palmer Seed Company, 1935)

Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1914)

Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1916)

Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1918)

Pamphlets on forest protection (1900)

Pamphlets on forestry (1900)

Pamphlets on forestry. Grazing (1900)

Pamphlets on forestry in California (1900)

Pamphlets on silviculture (1899)

Papaya - Ram, Mansha. (Indian Council of Agricultural Research, 2009)

Papers presented at the Celebration of the Twentieth Anniversary of the New York Botanical Garden, September 6-9, 1915. Published by the aid of the David Lydig Fund, bequethed by Charles P. Daly - New York Botanical Garden (1916)

The parasitic fungi of New Jersey - Schwarze, Carl Alois, 1886 - (New Jersey Agricultural Experiment Stations, 1917)

Parasitic rhizoctonias in America - Peltier, George Leo, 1888 - (1916)

I parassiti vegetali delle piante coltivate od utili - Ferraris, Teodoro. (Sineo & Bo, 1913)

Park's flower book : choice dependable seeds 1868, 1950 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Co, 1950)

Park's flower book for 1951 : all the best of new & old : always dependable 1868-1951 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (George W. Park Seed Co, 1951)

Park's flower book for 1952 : "all the best of new and old" - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Co, 1952)

Park's flower book for 1953 : seeds, bulbs, plants : "all the best of new and old" - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Co, 1953)

Park's flower book for 1955 : "all the best of new and old" : seeds, bulbs, plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Co, 1955)

Park's flower book for 1957 : "all the best of new and old" in all the floral kingdom : seeds, bulbs, plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Co, 1957)

Park's flower book for 1958 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Co, 1958)

Park's flower book for 1959 : "all the best of new and old" in all the floral kingdom : seeds, bulbs, plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Co, 1959)

Park's flower book of choice dependable seeds : 1948 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Co, 1948)

Park's flower book of choice dependable seeds : 1949 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Co, 1949)

Park's flower book : spring 1947 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Company, 1947)

Part I. The living flora of West Virginia - Millspaugh, Charles Frederick, 1854 -1923 (Wheeling news litho. co, 1913)

Partnerships for sustainable forest ecosystem management : fifth Mexico/U.S. biennial symposium : October 17-20, 1994, Guadalajara, Jalisco, Mexico - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1995)

Pasture, meadow, and forage crops in Nebraska - Hitchcock, A. S. (Albert Spear), 1865 -1935 (G.P.O, 1904)

Pathogenicity of the nematodes Rotylenchulus reniformis, Helicotylenchus dihystera, and Tylenchorhynchus claytoni to shade tobacco - Ratanaworabhan, Sawart, 1936 - (1969)

A pathological survey of the Para rubber tree (Hevea brasiliensis) in the Amazon Valley - Weir, James R. (James Robert), 1882 -1943 (U.S. Dept. of Agriculture, 1926)

Patologia vegetale. Fanerogame parassite, mixomiceti, bacterii, ifomiceti od eumiceti (funghi) - Voglino, Pietro. (Unione tipografico-editrice [Gia ditta Pomba e c], 1905)

Patterson's plants, guaranteed to live - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank H. Patterson, 1942)

Paul J. Howard's superior roses, flower seeds, fruit trees for 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Paul J. Howard's Horticultural Establishment, 1936)

Paxton's Botanical dictionary; comprising the names, history, and culture of all plants known in Britain; with a full explanation of technical terms. New ed. including all the new plants up to the present year - Paxton, Joseph, Sir, 1803 -1865 (Bradbury, Evans, & co, 1868)

P.D. Fulwood Co., Tifton, Georgia, growers and shippers high grade vegetable plants since 1909 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (P.D. Fulwood Co, 1951)

P.D. Fulwood Co., Tifton, Georgia, growers and shippers high grade vegetable plants since 1909 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (P.D. Fulwood Co, 1954)

P.D. Fulwood Co., Tifton, Georgia, growers and shippers high grade vegetable plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (P.D. Fulwood Co, 1950)

P.D. Fulwood, grower and shipper, high grade vegetable plants, Tifton, Georgia - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (P.D. Fulwood, 1942)

P.D. Fulwood, grower and shipper, high grade vegetable plants, Tifton, Georgia - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (P.D. Fulwood, 1943)

P.D. Fulwood, grower and shipper, high grade vegetable plants, Tifton, Georgia - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (P.D. Fulwood, 1941)

P.D. Fulwood, vegetable plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (P.D. Fulwood, 1940)

The Peanut, the unpredictable legume; a symposium - Arant, F. S. (Frank Selman), 1904 - (National Fertilizer Association, 1912)

Peas and pea culture; a practical and scientific discussion of peas, relating to the history, varieties, cultural methods, insects and fungous pests, with special chapters on the canned pea industry, peas as forage and soiling crops, garden peas, sweet peas, seed breeding, etc - Sevey, Glenn Cyrus, 1879 - (Orange Judd company, 1911)

Pecan rosette : its histology, cytology, and relation to other cholorotic diseases - Rand, Frederick Vernon, 1883 -1961 (U.S. Dept. of Agriculture, 1922)

Pecan rosette, its histology, cytology, and relation to other chlorotic diseases - Rand, Frederick Vernon, 1883 -1961 (Govt. print. off, 1922)

Pennsylvania vegetable growers' news - Pennsylvania Vegetable Growers' Association. (Pennsylvania Vegetable Growers' Association, 1939)

Pennsylvania vegetable growers' news - Pennsylvania Vegetable Growers' Association. (Pennsylvania Vegetable Growers' Association, 1942)

Pennsylvania vegetable growers' news - Pennsylvania Vegetable Growers' Association. (Pennsylvania Vegetable Growers' Association, 1944)

Pennsylvania vegetable growers' news - Pennsylvania Vegetable Growers' Association. (Pennsylvania Vegetable Growers' Association, 1945)