Guide to the insects of Connecticut - Wheeler, William Morton, 1865 -1937 (Printed for The State Geological and Natural History Survey, 1916)

Guide to the insects of Connecticut - Wheeler, William Morton, 1865 -1937 (Printed for The State Geological and Natural History Survey, 1923)

Guide to the spring flowers of Minnesota, field and garden - Clements, Frederic E. (Frederic Edward), 1874 -1945 (University of Minnesota, 1913)

Guide to the study of insects - Packard, A. S. (Alpheus Spring), 1839 -1905 (H. Holt and company, 1889)

Guide to the trees and shrubs of Minnesota - Clements, Frederic E. (Frederic Edward), 1874 -1945 (University of Minnesota, 1910)

A guide to the trees - Rowan, Ellis, 1848 -1922 (W. Briggs, 1900)

A guide to the trees; with sixty-four coloured and one hundred and sixty-four black-and-white plates and fifty-five diagrams - Rowan, Ellis, 1848 -1922 (F.A. Stokes, 1900)

Guidebook for the identification of woods used for ties and timbers - Forest Products Laboratory (U.S.) (Govt. print. off, 1917)

Guidebook for the identification of woods used for ties and timbers - Forest Products Laboratory (U.S.) (U.S. Govt.Print.Off, 1917)

Gypsy moth : aerial tests with Bacillus thuringiensis and pyrethroids - Kaya, Harry K. (Connecticut Agricultural Experiment Station, 1974)

Gypsy moth handbook : judging vigor of deciduous hardwoods - Combined Forest Pest Research; Development Program (U.S.) (U.S. Dept. of Agriculture, Combined Forest Pest Research and Development Program, 1988)

Gypsy moth management in the United States : a cooperative approach : final environmental impact statement - United States. Animal; Plant Health Inspection Service. (U.S. Dept. of Agriculture, Forest Service, Northeastern Area State and Private Forestry, 1995)

The gypsy moth. Porthetria dispar (Linn.). A report of the work of destroying the insect in the commonwealth of Massachusetts, together with an account of its history and habits both in Massachusetts and Europe - Fernald, C. H. (Charles Henry), 1838 -1921 (Wright & Potter Printing Co, 1896)

H. H. Berger & Co.'s price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (H .H. Berger & Co, 1900)

Haliburton flora : an annotated list of the vascular plants of the County of Haliburton, Ontario - Royal Ontario Museum. (Royal Ontario Museum, 1991)

Hamburger Garten- und Blumenzeitung (R. Kittler, 1856)

Hamburger Garten- und Blumenzeitung (R. Kittler, 1859)

Hamburger Garten- und Blumenzeitung (R. Kittler, 1861)

Hamburger Garten- und Blumenzeitung (R. Kittler, 1864)

Hamburger Garten- und Blumenzeitung (R. Kittler, 1867)

Hamburger Garten- und Blumenzeitung (R. Kittler, 1873)

Hamburger Garten- und Blumenzeitung (R. Kittler, 1874)

Hamburger Garten- und Blumenzeitung (R. Kittler, 1876)

Hamburger Garten- und Blumenzeitung (R. Kittler, 1878)

Hamburger Garten- und Blumenzeitung (R. Kittler, 1879)

Hamburger Garten- und Blumenzeitung (R. Kittler, 1882)

Hamburger Garten- und Blumenzeitung (R. Kittler, 1884)

Hamburger Garten- und Blumenzeitung (R. Kittler, 1887)

Hamburger Garten- und Blumenzeitung (R. Kittler, 1890)

Hand-book of trees and hardy plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan and Sons, 1915)

Hand-book of trees and hardy plants. 1917 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, 1917)

Hand-book of trees and hardy plants : 1916 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan and Sons, 1916)

Hand-book of trees and hardy plants : spring 1910 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, 1910)

A hand-book to the order Lepidoptera - Kirby, W. F. (William Forsell), 1844 -1912 (E. Lloyd, 1896)

Hand-list of Coniferae : grown in the Royal botanic gardens - Royal Botanic Gardens, Kew. (Printed for H. M. Stationery off. by Darling & son, Ltd, 1903)

Hand-list of trees and shrubs, excluding Coniferae, grown in Arboretum - Royal Botanic Gardens, Kew. (Printed for H.M. Stationery Off., by Darling, 1902)

Handbook for garden and orchard : 1949 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Beatrice Nursery, 1949)

The handbook for practical farmers, dealing with the more important aspects of farming in the United States - Findlay, Hugh, 1879 -1950 (D. Appleton and company, 1920)

Handbook for rangers & woodsmen - Taylor, Jay L. B. (Jay Laird Burgess), 1884 - (John Wiley & sons, inc.; [etc., etc.], 1917)

Handbook for rangers and woodsmen - Taylor, Jay L. B. (Jay Laird Burgess), 1884 - (John Wiley & Sons, Inc, 1916)

Handbook of "better built trees" - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Marshall Nurseries, 1955)

Handbook of "better built trees" - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Marshall Nurseries, 1956)

Handbook of experiment station work - United States. Office of Experiment Stations. (Gov't print. off, 1893)

Handbook of fruit and ornamental trees and plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hoopes, Bro. & Thomas Company, 1910)

Handbook of hardy trees, shrubs, and herbaceous plants. Based on the French work of Messrs. Decaisne and Naudin entitled 'Manuel de l'amateur des jardins,' and including the original woodcuts by Riocreux and Leblanc - Decaisne, Joseph, 1807 -1882 (Estes & Lauriat, 1873)

Handbook of native woody plants of the United States - United States. Soil Conservation Service. (Soil Conservation Service, 1936)

Handbook of Nebraska trees : a guide to the native and most important introduced species - Pool, Raymond J. (Raymond John), 1882 -1967 (University of Nebraska, 1919)

Handbook of ornamental trees and plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Maple Avenue Nurseries, 1904)

Handbook of ornamental trees, shrubs, hardy perennials, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (B.F. Barr & Co, 1917)

Handbook of ornamental trees, shrubs, hardy perennials, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (B.F. Barr & Co, 1916)

Handbook of the flora of Philadelphia and vicinity, containing data relating to the plants within the following radius: eastern Pennsylvania; all of New Jersey except the northern counties; and New Castle County, Delaware, with keys for identification of species - Brown, Stewardson, 1867 -1921 (Philadelphia Botanical Club, 1905)

Handbook of the trees of New England, with ranges throughout the United States and Canada - Brooks, Henry, 1857 - (Ginn, 1901)

Handbook of the trees of New England, with ranges throughout the United States and Canada - Bigelow, Elizabeth Gleason. (Ginn, 1901)

Handbook of the trees of the northern states and Canada east of the Rocky Mountains, photo-descriptive - Hough, Romeyn Beck, 1857 -1924 (Romeyn Beck Hough, 1907)

Handbook of the trees of the northern states and Canada east of the Rocky Mountains. Photo-descriptive - Hough, Romeyn Beck, 1857 -1924 (1921)

Handbook of the trees of the northern states and Canada east of the Rocky Mountains - Hough, Romeyn Beck, 1857 -1924 (The author, 1918)

Handbook of the trees of the northern states and Canada east of the Rocky mountains - Hough, Romeyn Beck, 1857 -1924 (The author, 1907)

Handbook of the trees of the northern states and Canada east of the Rocky Mountains : photo-descriptive - Hough, Romeyn Beck, 1857 -1924 (Harper & Brothers, 1907)

Handbook of the trees of the northern states and Canada east of the Rocky mountains - Hough, Romeyn Beck, 1857 -1924 (Macmillan, 1907)

Handbuch der Forstwissenschaft - Lorey, Tuisko von, 1845 -1901 (H. Laupp, 1912)

Handbuch der Laubholzkunde : Beschreibung der in Deutschland heimischen und im Freien kultivierten Bäume und Sträucher. Für Botaniker, Gärtner und Forstleute - Dippel, Leopold, 1827 -1914 (P. Parey, 1889)

Handbuch der Laubholzkunde. Beschreibung der in Deutschland heimischen und im Freien kultivierten Bäume und Sträucher - Dippel, Leopold, 1827 -1914 (P. Parey, 1889)

Handbuch der Pflanzenkrankheiten - Graebner, Paul, 1871 -1933 (P. Parey, 1928)

Handbuch der Pflanzenkrankheiten - Graebner, Paul, 1871 -1933 (P. Parey, 1925)

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

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

Handbuch der Pharmakognosie - Remy, E. (C. H. Tauchnitz, 1909)

Handbuch der praktischen Botanik : enthaltend die Geschichte, Beschreibung und Anwendung sämmtlicher in Deutschland wildwachsenden und in den Gärten und Gewächshäusern cultivierten Pflanzen - Voigt, F. S. (Friedrich Siegmund), 1781 -1850 (F. Mauke, 1850)

Handbuch der systematischen botanik, mit besonderer berücksichtigung der arzneipflanzen. Bd. 1 - Luerssen, Christian, 1843 -1916 (H. Haessel, 1879)

Handbuch für botanische Bestimmungsübungen - Niedenzu, Franz, 1857 -1937 (Engelmann, 1895)

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

Handy book of horticulture; an introduction to the theory and practice of gardening - Hayes, Francis Carlile. (Murray, 1901)

Die Harbkesche wilde Baumzucht theils Nordamerikanischer und anderer fremder : theils einheimischer Bäume, Sträucher und Strauchartigen Pflanzen, nach den Kennzeichen der Anzucht, den Eigenschaften und der Benutzung - Walwert, Georg Christoph, 1748 -1812 (im Verlage de Fürstl. Waisenhaus-Buchhandlung, 1771)

Hardwood record (Hardwood Co, 1906)

Hardwood record (Hardwood Co, 1910)

Hardwood record (Hardwood Co, 1912)

Hardwood record (Hardwood Co, 1913)

Hardwood record (Hardwood Co, 1915)

Hardwood record (Hardwood Co, 1917)

Hardwood record (Hardwood Co, 1918)

Hardwood record (Hardwood Co, 1919)

Hardy ferns & flowers, shrubs, roses, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Edward Gillett, 1901)

Hardy ferns and flowers : Southwick Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Edward Gillett, 1904)

Hardy fruit and ornamental trees : [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Coe, Converse & Edwards Co, 1910)

Hardy fruits & ornamentals - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Coe, Converse & Edwards Co, 1912)

Hardy fruits and ornamentals - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (C.L. Watrous, Capital City Nurseries, 1919)

Hardy native plants, evergreens and shrubs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.E. Williams Nursery Company, 1932)

Hardy ornamental plants for the south : trees, deciduous shrubs, broad-leaved evergreens, coniferous evergreens, vines - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ashford Park Nurseries, 1925)

Hardy ornamental plants for the south : trees, deciduous shrubs, broad-leaved evergreens, coniferous evergreens, vines - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ashford Park Nurseries, 1922)

Hardy ornamental plants for the south : trees, deciduous shrubs, broad-leaved evergreens, coniferous evergreens, vines - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ashford Park Nurseries, 1924)

Hardy ornamental plants for the south : trees, deciduous shrubs, broad-leaved evergreens, coniferous evergreens, vines - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ashford Park Nurseries, 1923)

Hardy ornamental trees and shrubs - James Veitch & Sons. (James Veitch & Sons, Ltd, 1911)

Hardy ornamentals : trees, plants bulbs ferns shrubs, vines - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1899)

Hardy ornamentals trees plants bulbs shrubs ferns vines - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1900)

Hardy perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wahoo Lodge Gardens, 1921)

Hardy plant material for 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Snyder Bros, 1933)

Hardy plant material for 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Snyder Bros, Inc, 1934)

Hardy plant material for 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Snyder Bros, Inc, 1935)

Hardy plant material for 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Snyder Bros, Inc, 1936)

Hardy plant material for 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Snyder Bros, Inc, 1937)

Hardy plant material for 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Snyder Bros, Inc, 1938)

Hardy plant material for 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Snyder Bros, Inc, 1939)