At the beginning of the history and sociology of knowledge as we know them today, there was a crisis. By the early 1970s, the future of the earth as a natural habitat for prosperity and progress was looking so bleak that many observers began turning pessimistic. Most famously, the Club of Rome declared Limits to Growth in its 1972 report. But other institutions and intellectuals took a similar line. To name just one, Nicholas Georgescu-Roegen, an economics professor at Vanderbilt University, probed the depths of history with The Entropy Law and the Economic Process (1971) only to find that Malthus was right all along. In spite of two centuries of industrial frenzy, entropy always was and always would be the reigning earthly principle.
How does an expert transmit expertise? What genres of scientific writing are available for doing so? Does the choice of genre matter in the long run? In this essay, I approach these questions by comparing two monographs published in the mid 1940s in the field of microbiology. While the works shared a concern with life at its smallest, they were written in different genres. One, entitled L’évolution physiologique: étude des pertes de fonctions chez les microorganismes, was a general survey of research on microbial nutrition.1 The other, called Pure Cultures of Algae: Their Preparation and Maintenance, was a manual of techniques for cultivating microscopic algae in test tubes.2