Conserving the Enlightenment

From Transformations: Studies in the History of Science and Technology

Conserving the Enlightenment

French Military Engineering from Vauban to the Revolution

By Janis Langins

A study of French military engineers at a crucial point in the evolution of modern engineering.





A study of French military engineers at a crucial point in the evolution of modern engineering.

The origins of the modern science of engineering can be traced to France's Royal Corps of Engineering in the eighteenth century. In Conserving the Enlightenment, Janis Langins gives us a history of this prototypical technical bureaucracy, using as his point of entry a pivotal dispute on the respective merits of two methods of engineering military fortifications. The story he tells of the tribulations of military engineers at the end of the Old Regime sheds light not only on the evolution of modern engineering but also on the difficulty of innovation in a technical bureaucracy.

From the days of Louis XIV and his great military engineer Vauban, engineers in France had a reputation for competence and intellectual superiority. (This respect for engineers survived the Revolution; two engineers sat on the new Republic's ruling Committee of Public Safety with Robespierre.) Langins argues that French engineers saw themselves as men of the Enlightenment, with a steadfast faith in science and its positive effects on society; they believed that their profession could improve and civilize even warfare. When Marc-Rene, marquis de Montalembert, a cavalry officer and an amateur engineer, challenged the prevailing wisdom with a new method of fortification, the subsequent factional struggle became a crucible of self-definition for the profession. In the end, Langins shows, Vauban's science won out over Montalembert's inspiration, reinforcing and predicting the essentially conservative nature of French engineering.


Out of Print ISBN: 9780262122580 568 pp. | 7 in x 9 in 40 illus.


  • Conserving the Enlightenment will be for some years to come the definitive study of the origins and early history of the French military engineering corps, one of the seeds from which the modern engineering profession generally and the American engineering profession specifically sprouted.

    Terry S. Reynolds

    Michigan Technical University, editor of The Engineer in America

  • This important book offers counterpoint to Kenneth Alder's Engineering the Revolution. With great skill and imagination, Langins exploits an eighteenth-century controversy over fortification design to illuminate the nature of engineering, the tension between theory and practice, the contrast between the lone genius and institutionalized professionalism, and the relationship between engineering and revolution.

    Alex Roland

    Duke University


  • Received Honorable Mention in the category of History of Science in the 2004 Professional/Scholarly Publishing Annual Awards Competition presented by the Association of American Publishers, Inc.