Nuove relazioni intorno ai lavori - R. Stazione di entomologia agraria in Firenze. (1900)

Nuove relazioni intorno ai lavori - R. Stazione di entomologia agraria in Firenze. (1902)

Nursery catalog : spring 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Sioux City Seed and Nursery Co, 1908)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1879)

Observations on the Coccidae of Egypt - Hall, W. J. (Wilfrid John), 1892 -1965 (Government Press, 1922)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 2010)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1894)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1895)

Official lists and indexes of names and works in zoology Supplement 1986-2000 - International Commission on Zoological Nomenclature (International Trust for Zoological Nomenclature, c/o Natural History Museum, 2001)

Official report ... of the ... convention ... - California Fruit Growers' Convention. (1902)

Official report ... of the ... convention ... - California Fruit Growers' Convention. (1904)

Official report ... of the ... convention ... - California Fruit Growers' Convention. (1908)

The Ohio journal of science - Ohio Academy of Science. (Ohio Academy of Science, 1909)

The Ohio naturalist - Ohio Academy of Science. (Biological Club of the Ohio State University, 1900)

The Ohio naturalist - Ohio Academy of Science. (Biological Club of the Ohio State University, 1903)

The Ohio naturalist - Ohio Academy of Science. (Biological Club of the Ohio State University, 1904)

The Ohio naturalist - Ohio Academy of Science. (Biological Club of the Ohio State University, 1905)

The Ohio naturalist - Ohio Academy of Science. (Biological Club of the Ohio State University, 1909)

The olive: its culture in theory and practice - Marvin, Arthur Tappan. (Payot, Upham & company, 1888)

On the water relations of the coconut palm - Copeland, Edwin Bingham, 1873 -1964 (Bureau of printing, 1906)

The orange - Spalding, Wm. Andrew. (1885)

The orange : its culture in California with a brief discussion of the lemon, lime, and other citrus fruits - Spalding, William Andrew, 1852 -1941 (Press and Horticulturist Steam Print, 1885)

Orchard and garden diseases, 1908, No. 138 - New Zealand. (New Zealand Government, 1908)

Orchard insects of the Pacific Northwest and their control - Newcomer, E. J. (Erval Jackson), 1890 - (U.S. Dept. of Agriculture, 1941)

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

O.S.U. naturalist - Ohio State University. Biological Club. (Biological Club of Ohio State University, 1902)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1918)

Our common insects. A popular account of the insects of our fields, forests, gardens and houses - Packard, A. S. (Alpheus Spring), 1839 -1905 (Naturalists' Agency, 1873)

Our common insects A popular account of the insects of our fields, forests, gardens, and houses - Packard, A. S. (Alpheus Spring), 1839 -1905 (Estes and Lauriat, 1873)

Outlines of entomology - Murtfeldt, Mary Esther, 1848 -1913 (Tribune Printing Company, State Printers and Binders, 1891)

Outlines of entomology - Murtfeldt, Mary Esther, 1848 -1913 (Tribune printing company, state printers and binders, 1891)

The Pacific tree & vine (Henry A. Brainard, 1884)

Palaeontographia Italica : Memorie di paleontologia - Canavari, Mario 1855 -1928 (Tip. T. Nistri, 1902)

Palaeontographia Italica : Memorie di paleontologia - Canavari, Mario 1855 -1928 (Tip. T. Nistri, 1918)

Le palmier à huile; habitat, variétés, conditions de végétation, culture, produits, commerce, conservation des palmeraies, amélioration de la production, considérations économiques - Adam, Jean. (Challamel, 1910)

Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1882)

Pamphlets on forest protection (1900)

Pamphlets on forestry in Ohio (1900)

Pamphlets on silviculture (1899)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1925)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1928)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1934)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1940)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1943)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1956)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1959)

Papéis avulsos do Departamento de Zoologia - São Paulo Departamento de Zoologia (A Secretaria, 1941)

Papers on Coccidae or scale insects - United States. Bureau of Entomology. (Government Printing Office, 1908)

Parasitic and predaceous insects in applied entomology - Riley, Charles V. (Charles Valentine), 1843 -1895 (Govt. print. off, 1893)

Pathological plant anatomy - Küster, E. (Ernst), 1874 -1953 (1913)

Paxton's magazine of botany, and register of flowering plants - Paxton, Joseph, Sir, 1803 -1865 (Orr and Smith [etc.], 1848)

Paxton's magazine of botany, and register of flowering plants - Paxton, Joseph, Sir, 1803 -1865 (Orr and Smith [etc.], 1849)

Peach-growing - Gould, H. P. (Macmillan, 1918)

Peach insects of Illinois and their control - Chandler, S. C. (Stewart Curtis), 1889 -1971 (1950)

Peach leaf curl : its nature and treatment - Pierce, Newton Barris, 1856 -1916 (Government Printing Office, 1900)

The Peach : the Kansas peach ... - Barnes, William H. (W.Y. Morgan, state printer], 1899)

Peach yellows - California. State Board of Horticulture. (A. J. Johnston, supt. state printing, 1891)

Pear growing in California - Weldon, Geo. P. (George Percival), 1880 - (State Print. Off, 1918)

Penjing plants from China : Buxus sinica, Ehretia microphylla, Podocarpus macrophyllus, Sageretia thea, Serissa foetida - United States. Animal; Plant Health Inspection Service. Plant Protection; Quarantine Programs. Biological Assessment; Taxonomic Support. (Biological Assessment and Taxonomic Support, Plant Protection and Quarantine, Animal and Plant Health Inspection Service, U.S. Dept. of Agriculture, 1996)

The persian walnut industry of the United States - Lake, Edward Ralph, 1860 - (Govt. print. off, 1913)

Pesticides documentation bulletin - National Agricultural Library (U.S.) (National Agricultural Library, U.S. Dept. of Agriculture, #c 1965-1969, 1965)