Rivista di biologia (Università di Perugia, etc, 1923)

Rivista italiana di paleontologia - Fornasini, Carlo. (Rivista italiana di paleontologia, 1906)

Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro (Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 1989)

The romance of the microscope, an interesting description of its uses in all branches of science, industry, agriculture, and in the detection of crime, with a short account of its origin, history & development - Ealand, Charles Aubrey, 1877 - (Seeley, Service, 1921)

Saggio di algologia oceanica - Mazza, Angelo. (Tipografia del Seminario, 1905)

Saggio di algologia oceanica - Mazza, Angelo. (Tipografia del seminario, 1905)

Saggio di algologia oceanica - Mazza, Angelo. (Tipografia del seminario, 1911)

Schedae ad Kryptogamas exsiccatas - Naturhistorisches Museum (Austria) (A. Holder, 1894)

Schilderung der deutschen Pflanzenfamilien; vom botanisch-descriptiven und physiologisch-chemischen Standpunkte - Hoffmann, Hermann, 1819 -1891 (Wirth, 1851)

Schilderung der deutschen pflanzenfamilien vom botanisch-descriptiven und physiologischchemischen standpunkte - Hoffmann, Hermann, 1819 -1891 (Georg Friedrich Hener's Verlag, 1846)

Schriften des Naturwissenschaftlichen Vereins für Schleswig-Holstein - Naturwissenschaftlicher Verein für Schleswig-Holstein. (Lipsius & Tischer, 1892)

Science - American Association for the Advancement of Science. ([s.n.], 1893)

Science - American Association for the Advancement of Science. ([s.n.], 1898)

Science - American Association for the Advancement of Science. ([s.n.], 1909)

Science-gossip (Simpkin Marshall, Hamilton, Kent & Co, 1900)

Science progress (John Murray, 1922)

The Scientific proceedings of the Royal Dublin Society - Royal Dublin Society. (The Society, 1881)

Gli scienziati italiani dall' inizio del medio evo al nostri giorni; repertorio biobibliografico dei filosofi, matematici, astronomi, fisici, chimici, naturalisti, biologi, medici, geografi italiani - Mieli, Aldo, 1879 -1950 (A. Nardecchia, 1921)

The Scottish botanical review - Botanical Society of Edinburgh. (Neill & Co, 1912)

The Scottish naturalist - Perthshire Society of Natural Science. (Cowan & Co. [etc.], 1881)

The Scottish naturalist - Perthshire Society of Natural Science. (Cowan & Co. [etc.], 1885)

The sea-beach at ebb-tide : a guide to the study of the seaweeds and the lower animal life found between tidemarks - Arnold, Augusta Foote, 1844 -1903 (The Century Co, 1901)

Sea mosses : a collector's guide and an introduction to the study of marine Algae - Hervey, A. B. (Alpheus Baker), 1839 -1931 (S.E. Cassino, 1881)

Sea mosses : a collector's guide, and an introduction to the study of marine algae - Hervey, A. B. (Alpheus Baker), 1839 -1931 (Estes and Lauriat, 1881)

Sea mosses, a collector's guide and an introduction to the study of marine Algae - Hervey, A. B. (Alpheus Baker), 1839 -1931 (S.E. Cassino, 1881)

Sea mosses. A collector's guide and an introduction to the study of marine Algae - Hervey, A. B. (Alpheus Baker), 1839 -1931 (S. E. Cassino, 1882)

Sea mosses, a collector's guide and an introduction to the study of marine Algae - Hervey, A. B. (Alpheus Baker), 1839 -1931 (B. Whidden, 1893)

The sea-shore - Duncan, P. Martin (Peter Martin), 1821 -1891 (Society for Promoting Christian Knowledge, 1879)

The sea shore, by W.S. Furneaux ... With eight plates in colour and over three hundred illustrations in the text - Furneaux, William S. (Longmans, Green and Co, 1922)

The sea-side book; being an introduction to the natural history of the British coasts - Harvey, William H. (William Henry), 1811 -1866 (J. Van Voorst, 1857)

The sea-side book : being an introduction to the natural history of the British coasts - Harvey, William H. (William Henry), 1811 -1866 (John Van Voorst, 1849)

Sea-weeds - Johns, C. A. (Charles Alexander), 1811 -1874 (Society for Promoting Christian Knowledge, 1860)

Sea-weeds, shells and fossils - Gray, O. P. (1886)

The Seaweeds of South Australia - Lucas, A. H. S. (Arthur Henry Shakespeare) 1853 -1936 (Govt. Printer, 1947)