Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1905)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1904)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1906)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1907)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1909)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1910)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1911)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1883)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1885)

Bulletins de l'Académie royale des sciences, des lettres et des beaux-arts de Belgique - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (1839)

Bullettino della Società botanica italiana - Società botanica italiana. (Società botanica italiana, 1896)

Bullettino della Società botanica italiana - Società botanica italiana. (Società botanica italiana, 1901)

Butterflies and moths of North America, with full instructions for collecting, breeding, preparing, classifying, packing for shipment, etc., a complete synonymical catalogue of Macrolepidoptera, with a full bibliography, to which is added a glossary of terms and an alphabetical and descriptive list of localities - Strecker, Herman, 1836 -1901 (Press of B.F. Owen, 1878)

Butterflies. Vol. I-II - Bingham, C. T. (Charles Thomas), 1848 -1908 (Taylor and Francis, 1905)

The butterfly book; a popular guide to a knowledge of the butterflies of North America - Holland, W. J. (William Jacob), 1848 -1932 (Doubleday, Page & Co, 1904)

Calcutta journal of natural history, and miscellany of the arts and sciences in India - McClelland, John 1805 -1883 (Bishop's College Press, 1846)

The California horticulturist and floral magazine - Stephens, C. (F.A. Miller & Co, 1870)

The California horticulturist and floral magazine - Bay District Horticultural Society (F.A. Miller & Co, 1870)

The Canadian naturalist and geologist - Natural History Society of Montreal. (B. Dawson, 1859)

The Canadian record of science - Natural History Society of Montreal. (Natural History Society, 1890)

Capital natural de México - Sarukhan, Jose (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2008)

Capital natural de México - Sarukhan, Jose (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2009)

The Caribbean forester - Burke, Lauretta Marie (Tropical Forest Experiment Station, United States Forest Service, 1939)

Carl Friedrich Dieterichs Pflanzenreich nach Carl von Linnés Natursysteme - Dieterich, Carl Friedrich, 1734 -1805 (C. Fritsch, 1775)

Carl Friedrich Dieterichs Pflanzenreich nach Carl von Linnés Natursysteme - Dieterich, Carl Friedrich, 1734 -1805 (C. Fritsch, 1798)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1904)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1906)