Green, J. R. History of Botany, 1860-1900. A continuation of Sachs's History. Clarendon Press, 1909.
Sachs, J. History of Botany, 1530-60. English translation. Clarendon Press, 1889.
An outline of the History of Palæontology is prefixed to Zittel's Handbuch der Palæontologie, Bd. 1. (1876-80). English translation, 1900-2.
The ninth edition of the Encyclopædia Britannica often contains useful references. See for example the articles Biology, Embryology, Medicine, Parasitism, and Zoology.
Biographical dictionaries are of course indispensable. The Dictionary of National Biography, the Biographie Universelle, the Nouvelle Biographie Universelle, the Allgemeine Deutsche Biographie, and the Biographie Nationale de Belgique will be frequently consulted.
Among the old authors who can be read for pleasure as well as for profit the present writer would include:—
Baker, H. The Microscope Made Easy. Second ed., 1743.—Employment for the Microscope. 1753.
Belon, P. Observations de plusieurs singularitez et choses mémorables trouvées en Grece, Asie, Judée, Egypte, Arabie, et autres pays estranges. 1553.
---- Histoire de la nature des Oyseaux. 1555.
Buffon, Comte de. Histoire Naturelle. Forty-four vols., of which thirty-six appeared during Buffon's lifetime. 1749-1804. Selected passages only.