Horae Societatis Entomologicae Rossicae, variis sermonibus in Rossia usitatis editae - Russkoe ėntomologicheskoe obshchestvo. (Typis V. Besobrasovi & Comp, 1911)

Horticulteur belge, journal des jardiniers et amateurs (1833)

Horticulture - Pennsylvania Horticultural Society. (Horticulture Pub. Co, 1921)

Horticulture - Pennsylvania Horticultural Society. (Horticulture Pub. Co, 1910)

Horticulture - Pennsylvania Horticultural Society. (Horticulture Pub. Co, 1911)

Horticulture - Pennsylvania Horticultural Society. (Horticulture Pub. Co, 1914)

Horticulture - Pennsylvania Horticultural Society. (Horticulture Pub. Co, 1918)

Hortus cantabrigiensis : or, An accented catalogue of indigenous and exotic plants cultivated in the Cambridge Botanic Garden - Cambridge Botanic Garden. (Longman, 1845)

Hortus lignosus londinensis: or, A catalogue of all the ligneous plants, indigenous and foreign, hardy and half-hardy, cultivated in the gardens and grounds in the neighbourhood of London: with all their synonymes, scientific and popular, including their French, German, and Italian names; and with their native country, habit, habitation in the garden, etc. To which are added the prices of hardy trees and shrubs in the principal nurseries of London and Edinburgh, and at Bollwyller in France, and in Hamburg - Loudon, J. C. (John Claudius), 1783 -1843 (The author, 1838)

Hortus Marybonensis, or, A catalogue of hardy herbaceous plants, deciduous & evergreen shrubs, forest & fruit trees, to which is added, a list of aquatic and bog plants - Jenkins, Thomas. (Printed for and sold by the proprietor, 1819)

Hortus Nymphenburgensis, seu, Enumeratio plantarum in Horto Regio Nymphenburgensi cultarum - Sterler, A. (Alois), 1787 -1831 ([publisher not identified], 1821)

Hortus suburbanus Londinensis, or, A catalogue of plants cultivated in the neighborhood of London : arranged according to the Linnean system, with the addition of the natural orders to which they belong, references to books where they are described, their native places of growth, when introduced, time of flowering, and reference to figures - Sweet, Robert, 1783 -1835 (Printed for James Ridgway, 1818)

Hortus woburnensis; a descriptive catalogue of upwards of six thousand ornamental plants cultivated at Woburn Abbey ... - Bedford, John Russell, Duke of, 1766 -1839 (J. Ridgway, 1833)

Hortus Woburnensis. A descriptive catalogue of upwards of six thousand ornamental plants cultivated at Woburn Abbey ... - Bedford, John Russell, Duke of, 1766 -1839 (J. Ridgway, 1833)

Hosea Waterer Golden Anniversary, 1892-1942 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hosea Waterer, 1942)

House & garden (Condé Nast Publications, etc.], 1912)

House & garden (Condé Nast Publications, etc.], 1915)

House & garden (Condé Nast Publications, etc.], 1918)

How to lay out suburban home grounds - Kellaway, Herbert J. (John Wiley & Sons, inc.; [etc., etc.], 1915)

Howell Nurseries : azaleas, magnolias, hollies, evergreens, flowering shrubs, ornamental trees and perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Howell Nurseries, 1937)

Howell Nurseries : azaleas, magnolias, hollies, evergreens, flowering shrubs, ornamental trees and perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Howell Nurseries, 1939)

Howell's descriptive catalog and price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Howell Nurseries, 1929)

Howell's descriptive catalog and price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Howell Nurseries, 1933)

Howell's hardy trees & plants for every place & purpose : fall of 1925, spring of 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Howe Nurseries, 1925)

Humboldt; Monatsschrift für die gesamten Naturwissenschaften - Damer, Otto, 1839 -1916 (F. Enke, 1884)

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, 1890)

H.V. Lawrence, Cape Cod Nurseries, Falmouth, Mass. : spring, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (H.V. Lawrence, 1935)

Die hymenopteren Mitteleuropas nach ihren gattungen und zum grossen teil auch nach ihren arten analytisch - Schmiedeknecht, Otto, 1847 -1936 (G. Fischer, 1907)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1909)

Icones fungorum omnium hucusque cognitorum ad usum sylloges Saccardianae adcommodatae - Berlese, A. N. (Augusto Napoleone), 1864 -1903 (Sumptibus auctoris, Typis Eduardi Pergola, 1894)

Iconographia familiarum naturalium regni vegetabilis = Abbildungen der natürlichen Familien des Gewächsreiches : delineata atque adiectis familiarum characteribus adnotationibusque variis tum scientiam tum usum spectantibus exornata - Schnizlein, Adalbert, 1814 -1868 (M. Cohen, 1843)

Iconographic encyclopaedia of science, literature, and art - Baird, Spencer Fullerton, 1823 -1887 (R. Garrigue, 1851)

Iconographie des orchidées d'Europe et du bassin Méditerranéen - Lecomte, Henri, 1856 -1934 (P. Lechavalier, 1921)

Iconographie et description de chenilles et lépidopteres inédits - Millière, Pierre, 1811 -1887 (F. Dumoulin, 1859)

Iconographie et description de chenilles et lépidopteres inédits - Millière, Pierre, 1811 -1887 (F. Dumoulin, 1864)

Iconographie et description de chenilles et lépidopteres inédits - Millière, Pierre, 1811 -1887 (F. Dumoulin, 1873)

Iconographie et description de chenilles et lépidopteres inédits - Millière, Pierre, 1811 -1887 (F. Dumoulin, 1869)

The identification of trees & shrubs; how to recognize, without previous knowledge of botany, wild or garden trees and shrubs native to the north temperate zone - Makins, F. K. (Dutton, 1937)

Illinois biological monographs - University of Illinois at Urbana-Champaign. (Univ. of Illinois Press, 1949)

Illustrated and descriptive catalogue of fruit and ornamental trees : shrubs, roses, grape vines, small fruits, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (First National Nurseries, 1909)

Illustrated and descriptive catalogue of fruit and ornamental trees : roses grape vines shrubs small fruits plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perry Nursery Co, 1912)

Illustrated and descriptive catalogue of fruit and ornamental trees : roses grape vines shrubs small fruits plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perry Nursery Co, 1910)

Illustrated and descriptive catalogue of ornamental trees, shrubs, roses, grape vines, small fruits, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (First National Nurseries, 1917)

Illustrated descriptive catalogue of choice hardy perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Reading Nursery, 1893)

Illustrated descriptive catalogue of ornamental trees, shrubs, and climbing vines offered by the Reading Nursery - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Reading Nursery, 1890)

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)

An illustrated dictionary of medicine, biology and allied sciences ... by George M. Gould. 5th ed., with additions and corrections - Gould, George M. (George Milbry), 1848 -1922 (P. Blakiston's Son, 1907)

An illustrated encyclopaedia of gardening - Wright, Walter P. (Walter Page), 1864 -1940 (J. M. Dent & sons, ltd, 1911)

An illustrated flora of the northern United States, Canada and the British possessions from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner's Sons, 1896)

An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner, 1913)

An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner's sons, 1913)

An illustrated flora of the northern United States, Canada and the British possesions from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102d meridian. Vol. 3, Apocynaceae to Compositae, dogbane to thistle - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner, 1897)

An illustrated flora of the northern United States, Canada and the British possesions from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102d meridian. Vol. 3, Apocynaceae to Compositae, dogbane to thistle - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner, 1898)

An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner's sons, 1913)

An illustrated guide to the flowering plants of the middle Atlantic and New England states (excepting the grasses and sedges) the descriptive text written in familiar language - Stevens, George T. (George Thomas), 1832 -1921 (Dodd, Mead and company, 1910)

An illustrated manual of British birds - Saunders, Howard, 1835 -1907 (Gurney and Jackson, 1899)

An illustrated natural history of British butterflies and moths - Newman, Edward, 1801 -1876 (W.H. Allen, 1800)

Illustrated natural history of British butterflies and moths - Newman, Edward, 1801 -1876 (Glaisher, 1869)

An illustrated natural history of British moths - Newman, Edward, 1801 -1876 (Hardwicke and Bogue, 1874)

L'Illustration horticole : journal spécial des serres et des jardins, ou choix raisonné des plantes les plus intérressantes sous le rapport ornemental, comprenant leur histoire complete, leur description comparée, leur figure et leur culture - Lemaire, Charles Antoine, 1801 -1871 (Imprimerie et lithographie de F. et E. Gyselnyck, 1858)

Illustrations of the British flora: a series of wood engravings, with dissections, of British plants - Bentham, George, 1800 -1884 (L. Reeve, 1919)

Illustrations of the natural orders of plants with groups and descriptions. Reduced from the original folio ed - Twining, Elizabeth, 1805 -1889 (Sampson Low, Son, and Marston, 1868)

Illustrierte Flora von Nord- und Mittel-Deutschland, mit einer Einführung in die Botanik - Potonié, H. (Henry), 1857 -1913 (J. Springer, 1889)

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

Illustrierte Zeitschrift für Entomologie - Allgemeine Entomologische Gesellschaft. (J. Neumann, 1899)

Illustriertes Forst- und Jagd- Lexikon. Unter Mitwirkung von Dr. Bühler [et al.] - Fürst, Hermann Heinrich von, 1837 - (P. Parey, 1904)

Illustriertes Handbuch der Laubholzkunde :Charakteristik der in Mitteleuropa heimischen und im freien angepflanzten angiospermen Geho¨lz-Arten und Formen mit Ausschluss der Bambuseen und Kakteen - Schneider, Camillo, 1876 -1951 (G. Fischer, 1912)

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

Impacts of backcountry recreation : site management and rehabilitation : an annotated bibliography - Intermountain Forest; Range Experiment Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, 1981)

Important western browse plants - Dayton, William A. (William Adams), 1885 - (U.S. Dept. of Agriculture, 1931)

In celebration of Dr. John J. Engel : a tribute to 40 years in bryology - Field Museum of Natural History. (Field Museum of Natural History, 2008)

In the country; essays - Watkins, M. G. (Morgan George),‏ ‎ 1835 - (Satchell, 1883)

Index generum phanerogamorum usque ad finem anni 1887 promulgatorum in Benthami et Hookeri "Genera plantarum" fundatus, cum numero specierum synonymis et area geographica - Bentham, George, 1800 -1884 (Sumptibus auctoris, 1888)

Index herbariorum. Part II, Collectors - International Bureau For Plant Taxonomy; Nomenclature (Bohn, Scheltema & Holkema, 1954)

Index Kewensis. names of seed-bearing plants at the rank of family and below published between January 1976 and the end of 1980 with some omissions from earlier years. Supplement seventeen - Royal Botanic Gardens, Kew. (Clarendon Press, 1901)

Index Kewensis plantarum phanerogamarum : nomina et synonym omnium generum et specierum a linnaeo usque as annum MDCCLXXXV complectans nomine recepro auctore patria unicuique planta subjectis : sumptibus beati Caroli Roberti Darwin ductu et consilio Josephi D. Hooker. Tomus 1-2 = Index Kewensis : an enumeration of the genera and species of flowering plants from the time of Linnaeus to the year 1885 inclusive together with their authors names, the works in which they were first published, their native countries and thei - Hooker, Joseph Dalton, 1817 -1911 (Clarendon Press, 1893)

Index Kewensis plantarum phanerogamarum. nomina et synonyma omnium generum et specierum ab initio anni MDCCCCXXVI usque ad finem anni MDCCCCXXX complectens. Supplementum octavum - Royal Botanic Gardens, Kew. (e prelo Clarendoniano, 1901)

Index Kewensis plantarum phanerogamarum. nomina et synonyma omnium generum et specierum ab initio anni MDCCCCXXXI usque ad finem anni MDCCCCXXXV complectens. Supplementum nonum - Royal Botanic Gardens, Kew. (e prelo Clarendoniano, 1901)

Index Kewensis plantarum phanerogamarum. nomina et synonyma omnium generum et specierum ab initio anni MDCCCLXXXVI usque ad finem anni MDCCCXCV complectens. Supplementum primum - Royal Botanic Gardens, Kew. (apud Alfredum Castaigne, 1901)

Index of British plants according to the London catalogue - Turnbull, Robert. (G. Bell, 1889)

Index of organisms and non-parasitic diseases in the Plant disease reporter, supplements 121-128, 1940 - United States. Division of Mycology; Disease Survey. (Division of Mycology and Disease Survey, Bureau of Plant Industry, United States Department of Agriculture, 1941)

Index Seminum horti regii Botanici Acadici Conimbricensis ... mutuae commutationi oblatus - Universidade de Coimbra. Instituto Botânico. (Typis Academicis, 1937)

Index supplementarius locorum natalium specialium plantarum nonnullarum vascularium in provincia Arctica Norvegiae sponte nascentium - Norman, J. M. (Johannes Musaeus), 1823 -1903 (Typ. expressit J.C. Manglie, 1864)

An index to the scientific contents of the Journal and Proceedings of the Academy of Natural Sciences of Philadelphia [1817-1910] Published in commemoration of the centenary of the academy, March 21, 1912 - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences, 1912)

India rubber world (Bill Brothers Publishing Corp, 1916)

Die indo-malayische Strandflora - Schimper, A. F. W. (Andreas Franz Wilhelm), 1856 -1901 (G. Fischer, 1891)

The influence of man on animal life in Scotland; study in faunal evolution - Ritchie, James, 1882 - (University press, 1920)

The insect fauna of the genus Crataegus - Wellhouse, Walter Housley, 1890 - (1922)

The insect fauna of the genus Crataegus - Wellhouse, Walter Housley, 1890 - (s.n, 1922)

Insekten-Börse (1893)

Insekten-Börse (1894)

Die Insekten-Welt : Zeitschrift des Internationalen Entomologen-Vereins - Internationaler Entomologischer Verein. (1885)

Die Insektenwelt : ein Taschenbuch zu entomologischen Exkursionen für Lehrer und Lernende - Karsch, Dr., (Anton) 1822 -1892 (O. Lenz, 1883)