Ornithologia, sive, Synopsis methodica sistens avium divisionem in ordines, sectiones, genera, species, ipsarumque varietates : cum brevi & accurata cujusque speciei descriptione, citationibus auctorum de iis tractantium, nominibus eis ab ipsis impositis, nominibusque vulgaribus - Brisson, Mathurin-Jacques, 1723 -1806 (Apud Theodorum Haak, 1763)

Ornithological gazetteer of Argentina - Paynter, Raymond A. Jr. (Obtainable from Bird Dept., Museum of Comparative Zoology, Harvard University, 1995)

Ornithological gazetteer of Brazil - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Obtainable from Bird Dept., Museum of Comparative Zoology, Harvard University, 1991)

Ornithological gazetteer of Chile - Paynter, Raymond A. Jr. (Bird Dept., Museum of Comparative Zoology, Harvard University, 1988)

Ornithological gazetteer of Colombia - Paynter, Raymond A. Jr. (Bird Dept., Museum of Comparative Zoology, Harvard University, 1997)

Ornithological gazetteer of Paraguay - Paynter, Raymond A. Jr. (Obtainable from Bird Dept., Museum of Comparative Zoology, Harvard University, 1989)

Ornithologie, ou, Méthode contenant la division des oiseaux en ordres, sections, genres, especes & leurs variétés : a laquelle on a joint une description exacte de chaque espece, avec les citations des auteurs qui en ont traité, les noms quils leur ont donnés, ceux que leur ont donnés les différentes nations, & les noms vulgaires - Martinet, François Nicolas, 1731 -1800 (Ad Ripam Augustinorum, apud Cl. Joannem-Baptistam Bauche, bibliopolam, ad Insigne S. Genovesae, & S. Joannis in Deserto, 1760)

Ornithologische Monatsschrift - Deutscher Verein zum Schutze der Vogelwelt. (Kommissions-Verlag der Creutschen Verlagsbuchhandlung, 1903)

Ornithologische Monatsschrift - Deutscher Verein zum Schutze der Vogelwelt. (Kommissions-Verlag der Creutschen Verlagsbuchhandlung, 1918)

Ornithologisches Jahrbuch (V. Tschusi, 1899)

Ornithologisches Jahrbuch (V. Tschusi, 1903)

Ornitologia italiana : opera postuma - Savi, Paul, 1798 -1871 (Successori Le Monnier, 1873)

Our face from fish to man; a portrait gallery of our ancient ancestors and kinsfolk together with a concise history of our best features - Gregory, William K. (William King), 1876 -1970 (G.P. Putnam's Sons, 1929)

Our living resources : a report to the nation on the distribution, abundance, and health of U.S. plants, animals, and ecosystems - United States. National Biological Service. (U.S. Dept. of the Interior, National Biological Service, 1995)

Ouresiphoitēs Helveticus, sive, Itinera per Helvetiae Alpinas regiones facta annis MDCCII, MDCCIII, MDCCIV, MDCCV, MDCCVI, MDCCVII, MDCCIX, MDCCX, MDCCXI : plurimis tabulis aeneis illustrata - Scheuchzer, Johann Jakob, 1672 -1733 (Typis ac sumptibus Petri Vander Aa, 1723)

P.A. Latreille scientiarum et artium instituti Gallici ... Genera crustaceorum et insectorum : secundum ordinem naturalem in familias disposita, iconibus exemplisque plurimis explicata - Latreille, P. A. (Pierre André), 1762 -1833 (Apud Amand Knig, Bibliopolam, 1806)

P.A. Latreille scientiarum et artium instituti Gallici ... Genera crustaceorum et insectorum : secundum ordinem naturalem in familias disposita, iconibus exemplisque plurimis explicata - Latreille, P. A. (Pierre André), 1762 -1833 (Apud Amand Knig, Bibliopolam, 1807)

P.A. Latreille scientiarum et artium instituti Gallici ... Genera crustaceorum et insectorum : secundum ordinem naturalem in familias disposita, iconibus exemplisque plurimis explicata - Latreille, P. A. (Pierre André), 1762 -1833 (Apud Amand Knig, Bibliopolam, 1809)

Pacific science - University of Hawaii. (University Press of Hawaii, 1947)

Palaeontographia Italica : Memorie di paleontologia - Canavari, Mario 1855 -1928 (Tip. T. Nistri, 1901)

Palaeontographia Italica : Memorie di paleontologia - Canavari, Mario 1855 -1928 (Tip. T. Nistri, 1903)

Palaeontographia Italica : Memorie di paleontologia - Canavari, Mario 1855 -1928 (Tip. T. Nistri, 1905)

Palaeontographia Italica : Memorie di paleontologia - Canavari, Mario 1855 -1928 (Tip. T. Nistri, 1908)

Palaeontographia Italica : Memorie di paleontologia - Canavari, Mario 1855 -1928 (Tip. T. Nistri, 1911)

Palaeontographia Italica : Memorie di paleontologia - Canavari, Mario 1855 -1928 (Tip. T. Nistri, 1912)

Palaeontographia Italica : Memorie di paleontologia - Canavari, Mario 1855 -1928 (Tip. T. Nistri, 1895)

Palaeontographica Americana - Paleontological Research Institution (Ithaca, N.Y.) (Paleontological Research Institution, 1984)

Palaeontographica Americana - Paleontological Research Institution (Ithaca, N.Y.) (Paleontological Research Institution, 1994)

Palæontology of New-York - Hall, James, 1811 -1898 (Printed by C. Van Benthuysen, 1843)

Palæontology of New-York - Hall, James, 1811 -1898 (Printed by C. Van Benthuysen, 1847)

Paleontological research - Nihon Koseibutsu Gakkai (Palaeontological Society of Japan, 1999)

Palmae mattogrossenses novae vel minus cognitae quas collegit descripsit et iconibus - Rodrigues, J. Barbosa (João Barbosa), 1842 -1909. (Typographia Leuzinger, 1898)

Pamphlets on silviculture (1899)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1935)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1955)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1966)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1971)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1984)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1992)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 2000)

Papéis avulsos do Departamento de Zoologia - São Paulo Departamento de Zoologia (A Secretaria, 1948)

Papéis avulsos do Departamento de Zoologia - São Paulo Departamento de Zoologia (A Secretaria, 1952)

Paradisi in sole paradisus terrestris - Parkinson, John, 1567 -1650 (Methuen & co, 1904)

Paradisi in sole paradisus terrestris, or, A garden of all sorts of pleasant flowers which our English ayre will permitt to be noursed vp: with a kitchen garden of all manner of herbes, rootes, & fruites, for meate or sause vsed with vs, and an orchard of all sorte of fruitbearing trees and shrubbes fit for our land together with the right orderinge planting & preseruing of them and their vses & vertues - Lownes, Humphrey. (Printed by Humfrey Lownes and Robert Young, 1692)

Pauli Hermanni ... Paradisus batavus, innumeris exoticis curiosis herbis, & rarioribus plantis, magno sumptu & curâ ex variis terrarum orbis regionibus, tam oriente, quam occidente, collectis, acquisitis, illustratus. Ingeniosissima, & dexterrima artificum manu elaboratis iconibus, ad vivum æri incisis. Eruditissimâ suâ, & magnorum in re herbaria versatissimorum virorum, methodicâ descriptione, & catalogo plantarum, nondum præ immatura morte auctoris delineatarum, locupletatus - Hermann, Paul, 1646? -1695 (apud Petrum van der Aa, 1705)

Le pays des Amazones : l'El-Dorado, les terres à caoutchouc - Santa-Anna Nery, Frederico José de, 1849 -1902 (Librairie Guillaumin, 1899)

Penny Cyclopaedia of the Society for the Diffusion of Useful Knowledge - Society for the Diffusion of Useful Knowledge (Great Britain) (Charles Knight, 1833)

Persio - Stelluti, Francesco, 1577 -1653 (Appresso Giacomo Mascardi, 1630)

Personal narrative of travels to the equinoctial regions of America, during the years 1799-1804 - Humboldt, Alexander von, 1769 -1859 (G. Bell, 1907)

Personal narrative of travels to the equinoctial regions of America during the years 1799 - 1804 - Humboldt, Alexander von, 1769 -1859 (George Routledge, 1895)

Personal narrative of travels to the equinoctial regions of America, during the year 1799-1804 - Humboldt, Alexander von, 1769 -1859 (Bohn, 1852)

Pesticides monitoring journal - United States. Chemical Information Division. (Technical Services Division, Office of Pesticide Programs, U.S. Environmental Protection Agency, 1970)

Petri Andreae Matthioli ... Opera quae extant omnia, hoc est, Commentarii in VI. libros Pedacii Dioscoridis Anazarbei De medica materia : ... Adiectis in margine variis Graeci textus lectionibus, ex antiquissimus codicibus desumptis, qui Dioscorides depravatam lectionem restituunt - Bauhin, Caspar, 1560 -1624 (Ex officina typographica Nicolai Bassaei], 1598)

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, medici, Compendium de plantis omnibus, vnà cum earum iconibus, de quibus scripsit suis in commentariis in Dioscoridem editis, in eorum studiosorum commodum, atque vsum; : qui plantis conquirendis, ac indagandis student : accessit praeterea ad calcem opusculum de itinere, quo è Verona in Baldum montem plantarum refertissimum itur; iisdem studiosis vtilissimum : Francisco Calceolario pharmacopaeo Veronensi auctore : quae quàm sint studiosae prosutura : ex epistolis in huiusce operis initio editis, facile patebit - Mattioli, Pietro Andrea, 1501 -1577 (In officina Valgrisiana, 1571)

Petri Artedi ... Ichthyologia sive opera omnia de piscibus, scilicet: Bibliotheca ichthyologica. Philosophia ichthyologica. Genera piscium. Synonymia specierum. Descriptiones specierum. Omnia in hoc genere perfectiora, quam antea ulla - Linné, Carl von, 1707 -1778 (apud Conradum Wishoff, 1738)

Petri Artedi ... Ichthyologia: sive, opera omnia de piscibus, scilicet: Bibliotheca ichthyologica. Philosophia ichthyologica. Genera piscium. Synonymia specierum. Descriptiones specierum. Omnia in hoc genere perfectiora, quam antea ulla - Artedi, Peter, 1705 -1735 (Apud Conradum Wishoff, 1738)

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)

Das Pflanzenreich :regni vegetablilis conspectus - Engler, Adolf, 1844 -1930 (W. Engelmann, 1909)

Das Pflanzenreich :regni vegetablilis conspectus - Engler, Adolf, 1844 -1930 (W. Engelmann, 1910)

Das Pflanzenreich :regni vegetablilis conspectus - Engler, Adolf, 1844 -1930 (W. Engelmann, 1912)

Das Pflanzenreich :regni vegetablilis conspectus - Engler, Adolf, 1844 -1930 (W. Engelmann, 1922)

Das Pflanzenreich :regni vegetablilis conspectus - Engler, Adolf, 1844 -1930 (W. Engelmann, 1924)

Das Pflanzenreich :regni vegetablilis conspectus - Engler, Adolf, 1844 -1930 (W. Engelmann, 1928)