Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1931 issue superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thurlow's and Stranger, Inc, 1931)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1932 issue superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thurlows and Stranger, Inc, 1932)

Peonies, hardy garden perennials, ornamental evergreens, shade trees, shrubs : 1937, superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Cherry Hill Nurseries, 1937)

Perennials and other hardy ornamental plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Cottage Gardens, 1927)

Perennials : deciduous trees, flowering shrubs, evergreens, hardy vines, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Muller-Sealey Co., Inc, 1924)

Perennials, shrubs, trees, vines, ferns, espaliers, ground covers : wholesale list, 1944 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tuttle Bros. Nurseries, 1944)

Perennials, shrubs, trees, vines, ferns, espaliers, ground covers : wholesale price list, 1943 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tuttle Bros. Nurseries, 1943)

Perennials, shrubs, trees, vines, ferns, espaliers : retail and wholesale list, 1941-1942 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tuttle Bros. Nurseries, 1941)

Perfection Nurseries : 1929-1930 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perfection Nurseries, 1929)

Perfection Nurseries, 1930-1931, growers of high-grade nursery stock - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perfection Nurseries, 1930)

Perfection Nurseries, 1931-1932, growers of high-grade nursery stock - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perfection Nurseries, 1931)

Perfection Nurseries, Inc., Foley, Alabama : we grow the best -o- we sell the best : our stock is sure to please you - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perfection Nurseries, 1933)

Perfection Nurseries, Inc., Foley, Alabama : we grow the best -o- we sell the best : our stock is sure to please you - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perfection Nurseries, 1934)

Perfection Nurseries, Incorporated, Foley, Alabama : we grow the best -o- we sell the best : our stock is sure to please you : 1936-1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perfection Nurseries, Incorporated, 1936)

Perfection Nurseries, Incorporated, Foley, Alabama : we grow the best -o- we sell the best : our stock is sure to please you : 1937-1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perfection Nurseries, Incorporated, 1937)

Perfection Nurseries, Incorporated, Foley, Alabama : we grow the best -o- we sell the best : our stock is sure to please you - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perfection Nurseries, 1935)

Perkie plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ivy Hill Forest, 1959)

Perkie plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ivy Hill Forest, 1957)

Perkie plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ivy Hill Forest, 1955)

Perkins-de Wilde Nurseries, Incorporated, 1945-46, wholesale only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perkins-de Wilde Nurseries, Incorporated, 1945)

Perkins-DeWilde Nurseries, Incorporated, 1946-47, wholesale only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perkins-DeWilde Nurseries, Incorporated, 1946)

Perkins-DeWilde Nurseries, Incorporated, 1947-48, wholesale only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perkins-DeWilde Nurseries, Incorporated, 1947)

Perkins-DeWilde Nurseries, Incorporated, 1948-49, wholesale only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perkins-DeWilde Nurseries, Incorporated, 1948)

Perkins-DeWilde Nurseries, Incorporated, 1951-52, wholesale only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perkins-DeWilde Nurseries, Incorporated, 1951)

Perkins-DeWilde Nurseries, Incorporated, 1952-53, wholesale only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perkins-DeWilde Nurseries, Incorporated, 1952)

Perkins-DeWilde Nurseries, Incorporated, 1953-54, wholesale only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perkins-DeWilde Nurseries, Incorporated, 1953)

Perkins-DeWilde Nurseries, Incorporated, 1955-56, wholesale only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perkins-DeWilde Nurseries, Incorporated, 1955)

Perkins-DeWilde Nurseries, Incorporated, 1958-59, wholesale only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perkins-DeWilde Nurseries, Incorporated, 1958)

Perkins-DeWilde Nurseries, Incorporated, 1959-60, wholesale only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perkins-DeWilde Nurseries, Incorporated, 1959)

Perú: Cordillera Escalera-Loreto - Stotz, Douglas F. (Douglas Forrester), 1956 - (The Field Museum, Science and Education, 2014)

Perú : Tapiche-Blanco - Field Museum of Natural History. (The Field Museum, 2015)

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

Petals from Flowerland : 1932 a new year, Olympiad a new rose - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Paul J. Howard's Horticultural Establishment, 1932)

Peter S. Ashton Sarawak fieldwork papers - Ashton, Peter S. (Peter Shaw), 1934 - (1963)

Peter's perennial and other plants : with which to create anew the old-time hardy gardens - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter's Nursery Company, 1909)

Peterson Nursery - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. A. Peterson, 1904)

Petri Andreæ Matthioli Senensis, medici caesari, et serenissimi principiis Ferdinandi archidvcis Avstriae &c. Commentarij in VI. libros Pedacij Dioscoridis Anazarbei de medica materia, ab ipso avtore recogniti, et locis plvs mille avcti. Adjectis magnis, ac nouis plantarum, ac animalium iconibus ... Accesserunt ad margines Græci contextus ... qui Dioscoridis ipsius deprauatam lectionem restituunt. Cum locupletissimis indicibus - Mattioli, Pietro Andrea, 1501 -1577 (apud Felicem Valgrisium, 1583)

Petri Andreæ Matthioli Senensis medici, Commentarii in sex libros Pedacii Dioscoridis Anazarbei De medica materia - Mattioli, Pietro Andrea, 1501 -1577 (Ex Officina Valgrisiana, 1565)

Petri Andreae Matthioli Senensis serenissimi Principis Ferdinandi Archiducis Austriae & c., Medici, Commentarii secundo aucti : in libros sex Pedacii Dioscoridis Anazarbei de medica materia. Adiectis quàm plurimis plantarum, & animalium imaginibus quae in priore editione non habentur, eodem authore : his accessit eiusdem apologia adversus Amathum Lusitanum cum censura in eiusdem enarrationes - Dioscorides Pedanius, of Anazarbos. (Ex officina Erasmiana, Vincentij Valgrifij, 1558)

Petri Matthioli ... Opera quae extant òmnia, hoc est, Commentarii in VI. libros Pedacii Dioscoridis Anazarbei De medica materia : adjectis in margine variis Graeci testus lectionibus, ex antiquissimis codicibus desumptis, qui Dioscorides depravatam lectionem restituunt - Bauhin, Caspar, 1560 -1624 (Sumptibus Joannis König, 1674)

Pflanzen der Heimat. Eine Auswahl der verbreitetsten Pflanzen unserer Fluren in Wort und Bild - Schmeil, O. (Otto), 1860 -1943 (Quelle und Meyer, 1913)

Pflanzen-geographie auf physiologischer Grundlage - Schimper, A. F. W. (Andreas Franz Wilhelm), 1856 -1901 (Gustav Fischer, 1908)

Pflanzen-teratologie systematisch geordnet - Penzig, O. (Ottone), 1856 -1929 (A. Ciminago, 1894)

Die Pflanzendecke der Erde : populäre Darstellung der Pflanzengeographie für gebildete Naturfreunde - Rudolph, Ludwig, 1813 -1896 (Nicolaische Verlagsbuchhandlung, 1859)

Pflanzenmikrochemie : ein Hilfsbuch beim mikrochemischen Studium pflanzlicher Objekte - Tunmann, Otto, 1867 -1919 (Gebrüder Borntraeger, 1913)

Pflanzenphysiologie. Ein Handbuch des Stoffwechsels und Kraftwechsels in der Pflanze - Pfeffer, W. (Wilhelm), 1845 -1920 (W. Engelmann, 1881)

Das Pflanzenreich :regni vegetablilis conspectus - Engler, Adolf, 1844 -1930 (W. Engelmann, 1913)

Das Pflanzenreich :regni vegetablilis conspectus - Engler, Adolf, 1844 -1930 (W. Engelmann, 1934)

Die Pflanzenstoffe in chemischer, physiologischer, pharmakologischer und toxikologischer Hinsicht : für Aerzte, Apotheker, Chemiker und Pharmakologen - Husemann, August, 1833 -1877 (J. Springer, 1871)

Die Pflanzenwelt Afrikas, insbesondere seiner tropischen Gebiete : Grundzge der Pflanzenverbreitung im Afrika und die Charakterpflanzen Afrikas - Engler, Adolf, 1844 -1930 (W. Engelman, 1910)

Die Pflanzenwelt der peruanischen Anden in ihren Grundzügen dargestellt - Weberbauer, A. (August), 1871 -1948 (W. Engelmann, 1911)

Die Pflanzenwelt Deutschlands; Lehrbuch der Formations- biologie. Eine Darstellung der Lebensgeschichte der wildwachsenden Pflanzenvereine und der Kulturflächen - Graebner, Paul, 1871 -1933 (Quelle & Meyer, 1909)

Die Pflanzenwelt Norwegens : ein Beitrag zur Natur- und Culturgeschichte Nord-Europas - Schübeler, F. C. (Frederik Christian), 1815 -1892 (1873)

Die Pflanzenwelt Ost-Afrikas und der Nachbargebiete - Engler, Adolf, 1844 -1930 (D. Reimer, 1895)

Die Pflanzenwelt vor dem Erscheinen des Menschen - Vogt, Karl Christoph, 1817 -1895 (Braunschweig : F. Vieweg u. Sohn, 1881)

Pharmacal plants and their culture - Schneider, Albert, 1863 -1928 (Richardson, Superintendent of State Printing, 1912)

Pharmaceutical journal and transactions - Pharmaceutical Society of Great Britain. (J. & A. Churchill, 1879)

Pharmaceutical journal and transactions - Pharmaceutical Society of Great Britain. (J. & A. Churchill, 1883)

Pharmaceutical journal and transactions - Pharmaceutical Society of Great Britain (J. & A. Churchill, 1871)

Pharmakognosie :ein Lehr- und Handbuch für Studierende, Apotheker, Drogisten, Sanitätsbeamte und Aerzte - Vogl, A. E. (August Emil), 1833 -1909 (C. Gerold's Sohn, 1892)

Philadelphia flower show - Pennsylvania Horticultural Society. (The Society, 1987)

Philadelphia flower show - Pennsylvania Horticultural Society. (The Society, 1989)

Philadelphia flower show - Pennsylvania Horticultural Society. (The Society, 1990)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1907)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1908)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1909)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1910)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1913)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1915)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1918)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1920)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1921)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1670)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1673)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1710)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1869)

PHS news - Pennsylvania Horticultural Society. (The Society, 1973)

PHS news - Pennsylvania Horticultural Society. (The Society, 1984)

PHS news - Pennsylvania Horticultural Society. (The Society, 1992)

PHS news - Pennsylvania Horticultural Society. (The Society, 1994)

PHS news - Pennsylvania Horticultural Society. (The Society, 1995)

Physica sacra - Scheuchzer, Johann Jakob, 1672 -1733 (Christian Ulrich Wagner], 1731)