The French botanist Michel Adanson spent five years in precolonial Senegal in the 1750s, under the auspices of the Compagnie des Indes. This essay follows the archival traces of Adanson’s engagement with African indigo, including experiments conducted in an ad hoc “laboratory” near the French fort of Saint Louis. A reconstruction of these experiments exposes the multifarious connections to and from the island garden-laboratory, mediated by materials and different kinds of indigo knowledge, including that of local Wolof informants. A microhistory (...) of encounters in and around a tiny island off the West African coast merges with a transatlantic story connecting Senegal to Paris and to French colonies in the Caribbean (Saint-Domingue and Guyana). The essay explores geographies of knowledge and French imperial ambitions through close attention to the material properties of indigo, the practices associated with its cultivation and transformation from plant to dye, and the material remnants of Adanson’s engagement with it in Africa. These remnants—herbarium sheets, experimental notes, color samples on paper strips, dyed fabric swatches, sketched maps, correspondence, collection catalogues, and plant taxonomies—put various kinds of African knowledge and Caribbean plantation experience into dialogue with European botany and dye chemistry. (shrink)

Taking off from reflections about the relation of biographical writing to fiction, this essay considers the ways in which scientific biography can explore the cultural dynamics of science. The author examines her own experience in using biography to write history of science and refers to several other examples of biographies of eighteenth‐century figures that raise issues specific to the persona of the man of science and his audiences in this period.

Geoffrey V. Sutton, Science for a Polite Society: Gender, Culture, and the Demonstration of Enlightenment (Boulder, CO: Westview Press, 1995), xiii + 391 pp., ISBN 0-8133-1575-1. -/- Christian Licoppe, La formation de la pratique scientifique: le discours de l’expe´rience en France et en Angleterre (1630–1820) (Paris: Editions de la de´ couverte, 1996), 346 pp., ISBN 2-7071-2530-X.

In eighteenth‐century France, geodesy became an arena where mathematics and narrative intersected productively. Mathematics played a crucial role not only in the measurements and analysis necessary to geodesy but also in the narrative accounts that presented the results of elaborate and expensive expeditions to the reading public. When they returned to France to write these accounts after their travels, mathematician‐observers developed a variety of ways to display numbers and mathematical arguments and techniques. The numbers, equations, and diagrams they produced could (...) not be separated from the story of their acquisition. Reading these accounts for the interplay of these two aspects—the mathematical and the narrative—shows how travelers articulated the intellectual and physical difficulties of their work to enhance the value of their results for specialist and lay readers alike. (shrink)