Biology and Its Makers With Portraits and Other Illustrations — Reading Companion

Portraits as Historical Evidence

Locy includes portraits of nearly all the founders of biology, some of which, he notes, are unfamiliar even to biologists and were discovered only after long searches in European and American libraries. These images are not mere decoration; they serve as primary sources for understanding character. Of Schwann, Locy writes that his portrait reveals “good-will and benignity,” and he supplements this with a contemporary description by Henle: a beardless face, an “almost infantile and always smiling expression,” a poorly lit room above a restaurant. The portrait and the verbal sketch together construct a personality—gentle, pacific, averse to controversy—that Locy then connects to Schwann's scientific style. This integration of visual and textual evidence is a deliberate authorial choice, grounding abstract ideas in tangible human presence.

The Role of Erroneous Observations

Locy does not shy away from showing that progress often rests on mistakes. Schleiden's 1837 view of cell origin, he states bluntly, “was founded on erroneous observations and conclusions.” Yet Locy argues that this error was “revolutionary” because it provoked discussion and awakened observation. He traces how Schleiden's mistaken belief that new cells bud from the nucleus (which he renamed the cytoblast) was corrected by Nägeli and others, but then notes the paradox: “it was through the help of these false observations that Schwann arrived at his general conclusions.” This nuanced treatment of error as a catalyst, rather than a failure, is a distinctive feature of Locy's narrative. He treats scientific ideas as evolving through debate, not as a linear march toward truth.

Müller's Laboratory as a Crucible

Locy emphasizes the institutional and personal contexts that shaped discovery. Johannes Müller, described as “the greatest of all trainers of anatomists and physiologists of the nineteenth century,” appears as a central figure whose influence radiated through his students. Schwann, Locy notes, drew stimulus from Müller first at the University of Würzburg, where Müller selected him for “especial favors,” and later at Berlin, where Schwann became an assistant in Müller's laboratory. The description of their working conditions—dark, fusty halls, working till nightfall by daylight—grounds the intellectual history in a physical setting. Locy's choice to highlight mentorship and environment, rather than isolated genius, reflects his broader argument that biology was made collaboratively, in specific places and relationships.

The Preface as a Window on Audience

Locy's preface reveals his intended readership and his rhetorical strategy. He writes that he receives annual letters from “students, teachers, ministers, medical men, and others” asking for information on general biology and references to the best reading. The book, he explains, is a response to these inquiries: an untechnical account of the rise and progress of biology, organized around the lives of great leaders. He acknowledges the difficulty of selection, the need to separate “men of temporary notoriety” from those “of enduring fame,” and the aim to give a picture “sufficiently diagrammatic not to confuse the general reader.” This framing—a teacher addressing a curious public—shapes the book's tone: authoritative but accessible, focused on broad features rather than technical details.

Locy's Biology and Its Makers rewards readers who attend to its method as much as its content. The narrative is built from specific, often intimate details—a dinner conversation, a portrait's expression, a poorly lit room—that make abstract scientific developments concrete. By foregrounding the human interactions and institutional settings that shaped discovery, Locy offers a history that is both informative and personal. Readers interested in the social fabric of nineteenth-century science will find here a rich, carefully documented account of how biology came to be.

That rain-soaked afternoon, I lingered over Locy’s portraits, struck by how quietly these scientists watched living things. Their patient eyes seemed to ask for a different kind of attention, one less about naming and more about sensing. Later, almost without deciding, I reached for The Organism as a Whole, from a Physicochemical Viewpoint — Reading Companion. It felt less like a departure and more like turning the page on the same long thought.