The First Illustration of an Insect Brain: Swammerdam on the Honeybee (With an Unedited Autograph)

This paper offers an analysis of Johannes Swammerdam’s researches on the brain of the honeybee (Apis mellifera), on the basis both of his published texts and of (1) an early, manuscript version of his treatise on bees (broadly intended) (1673), and (2) a hitherto unedited autograph of his, containing the earliest depiction and description of an insect brain (1673–1677). Through a reconstruction of the genesis of Swammerdam’s texts on bees, both the novelty and accuracy of his observations are highlighted, as well as his reliance on a Cartesian physiology in the interpretation and rendering of the observed parts.