The Life of the Fly; With Which are Interspersed Some Chapters of Autobiography — Context and Discussion

The Maggot's Retina

In the chapter on the grey flesh flies, Fabre describes a simple experiment that reveals something unexpected: the maggot, though blind, is acutely sensitive to light. He places grubs on a table near a window and observes how they turn away from the diffused daylight, crawling persistently toward darkness. When he screens the window, the troop changes direction; when he removes the screen, they turn tail again. Fabre notes that the maggot's entire skin acts as a sort of retina, capable of distinguishing light from darkness without any optical apparatus. He admits that light still keeps many secrets and regrets not having the apparatus to probe further. This passage exemplifies Fabre's method: a modest experiment, a clear observation, and an honest acknowledgment of limits.

Burial and the Glass Tube

Fabre extends his inquiry by asking how deep a maggot will bury itself to escape light. He uses a glass tube three feet long, filled with sand, and places grubs on the surface. The grubs descend to a moderate depth—about four inches—and then stop, satisfied that the layer above is thick enough. But Fabre wonders what would happen if the sideward layer were nowhere thick enough. He does not reveal the outcome in the excerpt, but the setup shows his ingenuity: he repurposes a hydrogen-flame tube for a biological experiment. The passage also reveals his frustration with limited resources, as he contrasts his poverty with the well-equipped scientists who care more for lucrative posts than for fair truths.

Autobiographical Interludes

Interspersed among the fly chapters are recollections of Fabre's childhood and schooling. In one chapter, he describes his early education and the difficulties of learning Latin and Greek. These sections are not digressions but counterpoints: they show the formation of the observer who would later spend hours watching a bluebottle lay eggs. Fabre's voice in these passages is more personal, even vulnerable, as when he recalls a memorable lesson or his first encounter with industrial chemistry. The translator's note explains that these essays are included to make the volume uniform with others in the series, but they also serve to remind the reader that scientific patience is rooted in a life of curiosity and hardship.

Readers should approach this book as a collection of essays rather than a systematic treatise. The chapters vary in length and focus, and the autobiographical sections interrupt the entomological narrative. Fabre's prose rewards slow reading: his experiments are described with enough detail to be repeated, and his reflections invite the reader to share his wonder at the ordinary. Pay attention to the footnotes added by the translator, which clarify insect names and Fabre's references, but do not let them distract from the naturalist's own voice.

Fabre’s patient watching of flies made me think of how certain catalogues—like that Supplement to the catalogue of seals and whales in the British Museum — Reading Notes—hold the same quiet awe, listing creatures with such care that the page itself feels alive. His small experiments stayed with me long after closing, a gentle reminder of how attention becomes love.