Die polycladen (seeplanarien) des golfes von Neapel und der angrenzenden meeres-abschnitte - Lang, Arnold, 1855 -1914 (W. Engelmann, 1884)

Ponds and ditches - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Society for Promoting Christian Knowledge, 1880)

The Popular educator: a complete encyclopaedia of elementary, advanced and technical education (Cassell, 1888)

A popular history of British seaweeds : comprising their structure, fructification, specific characters, arrangement, and general distribution, with notices of some of the fresh-water algae - Landsborough, D. (David), 1779 -1854 (L. Reeve, 1857)

A popular history of British zoophytes, or corallines - Landsborough, D. (David), 1779 -1854 (Reeve and co, 1852)

Popular Science Review (1862)

Popular Science Review (1864)

Popular Science Review (1865)

Popular Science Review (1867)

Popular Science Review (1878)

Le pourquoi-pas dans l'Antarctique : journal de la deuxieme expedition au Pole Sud, 1908-1910, suivi des rapports scientifiques des membres de letat-major preface de M. Paul Doumer - Charcot, Jean, 1867 -1936 (Ernest Flammarion, 1910)

The powers of the Creator displayed in the creation; or, Observations on life amidst the various forms of the humbler tribes of animated nature - Dalyell, John Graham, 1775 -1851 (J. Van Voorst, 1851)

The powers of the Creator displayed in the creation; or, Observations on life amidst the various forms of the humbler tribes of animated nature - Dalyell, John Graham, 1775 -1851 (J. Van Voorst, 1853)

The powers of the Creator displayed in the creation; or, Observations on life amidst the various forms of the humbler tribes of animated nature - Dalyell, John Graham, 1775 -1851 (J. Van Voorst, 1858)

The practical shepherd: a complete treatise on the breeding, management and diseases of sheep - Randall, Henry Stephens, 1811 -1876 (D. D. T. Moore, 1863)

The practical shepherd: a complete treatise on the breeding, management and diseases of sheep - Randall, Henry Stephens, 1811 -1876 (J. B. Lippincott & co, 1863)

Practical zoology - Hegner, Robert William, 1880 -1942 (Macmillan, 1915)

Practical zoölogy : an elementary text-book treating of the structure, life, history, and relations of animals - Davison, Alvin, 1868 -1915 (American Book Company, 1906)

Preliminary results of an inventory of Algal Cave, Glacier National Park, Montana, for aquatic cave invertebrates - Montana Natural Heritage Program. (Montana Natural Heritage Program, 2000)

A preliminary study of the distribution, food and reproductive capacity of some fresh-water amphipods - Embody, George Charles, 1876 -1939 (1912)

Primae lineae systematis naturæ : nexui naturali omnium evolutionique progressivae per nixus reascendentes superstructi - Gori͡aninov, Pavel Fedorovich, 1796 -1865 (Typis Karoli Krajanis, 1834)

Principles of animal biology - Shull, A. Franklin (Aaron Franklin), 1881 -1961 (McGraw-Hill, 1920)