A history of Infusoria, including the Dismidiace and Diatomace, British and foreign - Archer, William, 1827 -1898 (Whitaker and co, 1861)

A history of the Pennsylvania Horticultural Society, 1827-1927 - Boyd, James, 1858 -1929 (Pennsylvania Horticultural Society, 1929)

History of the United States Botanic Garden, 1816-1991 - United States. Architect of the Capitol ([U.S. G.P.O.], 1993)

A history of the vegetable kingdom; embracing the physiology of plants, with their uses to man and the lower animals, and their application in the arts, manufactures, and domestic economy. Illus. by several hundred figures - Rhind, William, fl 1833 -1867 (Blackie and Son, 1855)

A history of the vegetable kingdom : embracing the whole physiology of plants with their uses to man and the lower animals, and their application in the arts, manufactures, and domestic economy - Rhind, William, fl 1833 -1867 (Blackie, 1866)

Hjort's 1926 booklet of roses, evergreens, flowering shrubs, fruit & nut trees - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomasville Nurseries, 1926)

Hjort's 1931 booklet of roses, evergreens, flowering shrubs, fruit & nut trees - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomasville Nurseries, 1930)

Hjort's 1933 booklet of roses, azaleas, camellias, evergreens and flowering shrubs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomasville Nurseries, Inc, 1932)

Home plantings : 1886–retail catalog–1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Griffing Nurseries, 1930)

Home plantings : 1923 catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Griffing Nurseries, 1923)

Home plantings, 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Griffing Nurseries, 1929)

The Hope reports - Poulton, Edward Bagnall, Sir, 1856 -1943 (Printed for private circulation, 1913)

Horticulture - Pennsylvania Horticultural Society. (Horticulture Pub. Co, 1904)

Horticulture - Pennsylvania Horticultural Society. (Horticulture Pub. Co, 1905)

Horticulture - Pennsylvania Horticultural Society. (Horticulture Pub. Co, 1906)

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

Horticulture - Pennsylvania Horticultural Society. (Horticulture Pub. Co, 1908)

Horticulture - Pennsylvania Horticultural Society. (Horticulture Pub. Co, 1909)

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