Handbuch der Pflanzenkrankheiten - Sorauer, Paul, 1839 -1916 (P. Parey, 1921)

Handbuch der Pflanzenkrankheiten - Lindau, Gustav, 1866 -1923 (P. Parey, 1908)

Handbuch des Getreidebaues - Werner, Hugo, Dr. (Parey, 1885)

Handlexikon der Naturwissenschaften und Medizin - Bechhold, H. (Heinrich), 1866 -1937 (Bechhold, 1919)

Handwörterbuch der naturwissenschaften - Verworn, Max, 1863 -1921 (G. Fischer, 1912)

Handwörterbuch der Zoologie - Dalla Torre, K. W. von (Karl Wilhelm), 1850 -1928 (F. Enke, 1887)

Hedwigia (Verlag und Druck von C. Heinrich, 1902)

Hedwigia (Verlag und Druck von C. Heinrich, 1904)

Hedwigia (Verlag und Druck von C. Heinrich, 1905)

Hedwigia (Verlag und Druck von C. Heinrich, 1912)

Hedwigia (Verlag und Druck von C. Heinrich, 1916)

Hedwigia (Verlag und Druck von C. Heinrich, 1922)

Herbertia - American Plant Life Society. (American Plant Life Society, 1948)

Hereditas - Mendelian Society of Lund. (Published by the Mendelian Society of Lund for the Scandinavian Association of Geneticists, 1920)

Histoire naturelle illustrée; les animaux, les invertébrés - Joubin, Louis 1861 -1935 (Larousse, 1923)

The hop; its culture and cure, marketing and manufacture; a practical handbook on the most approved methods in growing, harvesting, curing and selling hops, and on the use and manufacture of hops - Myrick, Herbert, 1860 - (Orange Judd, 1909)

The hop; its culture and cure, marketing and manufacture; a practical handbook on the most approved methods in growing, harvesting, curing, and selling hops, and on the use and manufacture of hops - Myrick, Herbert, 1860 - (Orange Judd company, 1899)

Hops in their botanical, agricultural and technical aspect and as an article of commerce - Gross, Emanuel, 1948 - (Scott, Greenwood and co, 1900)

Horticulture - Pennsylvania Horticultural Society. (Horticulture Pub. Co, 1907)

The horticulturist's rule-book; a compendium of useful information for fruit growers, truck-gardeners, florists, and others. Completed to the beginning of the year 1892 - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Rural Publishing Co, 1892)

Horticutural statutes, also quarantine orders and regulations and list of state and county horticultural officers - California. (California state printing office, 1917)

A host index of Mississippi plant diseases - United States. Plant Disease Survey. (Plant Disease Survey, Division of Mycology and Disease Survey, Bureau of Plant Industry, Soils, and Agricultural Engineering, Agricultural Research Administration, United States Department of Agriculture, 1947)

How to grow the cow pea and 40 ways of preparing it as a table delicacy - Carver, George Washington, 1864 -1943 (Experiment Station, Tuskegee Normal and Industrial Institute, 1917)

Humboldt; Monatsschrift für die gesamten Naturwissenschaften - Damer, Otto, 1839 -1916 (F. Enke, 1882)

Humboldt; Monatsschrift für die gesamten Naturwissenschaften - Damer, Otto, 1839 -1916 (F. Enke, 1889)

Humboldt; Monatsschrift für die gesamten Naturwissenschaften - Damer, Otto, 1839 -1916 (F. Enke, 1890)

Icones Bogorienses - Kebun Raya Indonesia. (E. J. Brill, 1908)

Illinois biological monographs - University of Illinois at Urbana-Champaign. (Univ. of Illinois Press, 1923)

The illustrated dictionary of gardening :a practical and scientific encyclopædia of horticulture for gardeners and botanists - Nicholson, George, 1847 -1908 (L.U. Gill, 1884)

The Illustrated dictionary of gardening : a practical and scientific encyclopaedia of horticulture for gardeners and botanists - Nicholson, George, 1847 -1908 (L. Upcott Gill, 1887)

The illustrated dictionary of gardening, a practical and scientific encyclopedia of horticulture for gardeners and botanists - Nicholson, George, 1847 -1908 (L. U. Gill, 1884)

Illustrierte Wochenschrift für Entomologie - Berliner Entomologische Gesellschaft. (J. Neumann, 1896)

Illustriertes Handwörterbuch der Botanik - Linsbauer, Karl, 1872 -1934 (W. Engelmann, 1917)

Index-catalogue of medical and veterinary zoology. Authors - United States. Office of Experiment Stations. (Zoological Division, Bureau of Animal Industry, 1902)

Index of organisms and non-parasitic diseases in Plant disease reporter, supplements XXXI-XXXVII, 1924 - United States. Plant Disease Survey. (Plant Disease Survey, Bureau of Plant Industry, United States Department of Agriculture, 1925)

Index to Plant disease reporter supplements 180-188, 1949 - United States. Plant Disease Survey. (Plant DIsease Survey, Division of Mycology and Disease Survey, Bureau of Plant Industry, Soils, and Agricultural Engineering, Agricultural Research Administration, United States Department of Agriculture, 1950)

Index to Plant disease reporter supplements 190-197, 1950 - United States. Plant Disease Survey. (Plant DIsease Survey, Division of Mycology and Disease Survey, Bureau of Plant Industry, Soils, and Agricultural Engineering, Agricultural Research Administration, United States Department of Agriculture, 1951)

Index to Plant disease reporter supplements 199-208, 1951 - United States. Plant Disease Survey. (Plant DIsease Survey, Division of Mycology and Disease Survey, Bureau of Plant Industry, Soils, and Agricultural Engineering, Agricultural Research Administration, United States Department of Agriculture, 1952)

Index to Plant disease reporter supplements 210-217, 1952 - United States. Plant Disease Survey. (Plant DIsease Survey, Division of Mycology and Disease Survey, Bureau of Plant Industry, Soils, and Agricultural Engineering, Agricultural Research Administration, United States Department of Agriculture, 1953)

Index to Plant disease reporter supplements 231-235, 1955 - United States. Plant Disease Epidemics; Identification Section. (Plant Disease Epidemics and Identification Section, Agricultural Research Service, United States Department of Agriculture, 1956)

Index to Plant disease reporter supplements 250-252, 1958 - Nance, Nellie W. (Crops Research Division, Agricultural Research Service, United States Department of Agriculture, 1959)

Index to supplements VIII-XII, Plant disease bulletin 1920 - United States. Plant Disease Survey. (Plant Disease Survey, Bureau of Plant Industry, United States Department of Agriculture, 1920)

The influence of organic amendments on numbers of nematodes and other microorganisms in the soil - Tomerlin, Arthur Harris, 1941 - (1969)

Injurious and beneficial insects of California - California. State Commission of Horticulture. (California state printing office, 1915)

Insect life - United States. Division of Entomology. (G.P.O, 1888)

Insect life - United States. Bureau of Entomology. (Government Printing Office, 1889)

Insect life - United States. Bureau of Entomology. (Government Printing Office, 1890)

Insect life - United States. Bureau of Entomology. (Government Printing Office, 1891)

Insect life - United States. Bureau of Entomology. (Government Printing Office, 1893)

The Insect pest survey bulletin - United States. Bureau of Entomology. (Bureau of Entomology, U.S. Dept. of Agriculture, 1924)

The Insect pest survey bulletin - United States. Bureau of Entomology. (Bureau of Entomology, U.S. Dept. of Agriculture, 1921)

Insecticides, fungicides and weed-killers, a practical manual on the diseases of plants and their remedies, for the use of manufacturing chemists, agriculturists, arboriculturists and horticulturists - Bourcart, Emmanuel. (Scott, 1913)

Insecticides, fungicides and weedkillers: a practical manual on the diseases of plants and their remedies, for the use of manufacturing chemists, agriculturists, arboriculturists and horticulturists - Grant, Donald. (Scott, Greenwood & son, 1913)

Insects; the yearbook of agriculture,1952 - United States. Department of Agriculture. (U.S.G.P.O, 1952)

Insekten-Börse (1895)

Insekten-Börse (1906)

Das Insektenleben Österreichs ; mit einem Anhand über Gallen und ahnliche Pflanzenverustaltungen samt deren Erzeuger. Ein Handbuch und Wegweiser für Naturfreunde jeder Art - Mader, Leopold. (Hölder-Pichler-Tempsky, 1922)

International catalogue of scientific literature. M, Botany - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1902)

International catalogue of scientific literature. M, Botany - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1908)

International catalogue of scientific literature. M, Botany - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1911)

International catalogue of scientific literature. M, Botany - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1916)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1903)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1904)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1905)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1906)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1908)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1911)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1914)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1916)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1919)