Major Prophets of To-Day — Reading Companion

The Interview as Method

Slosson’s approach is deliberately personal. He describes meeting Élie Metchnikoff at the Pasteur Institute, armed with a letter from Jacques Loeb, and finding a man with “a short figure and a large head, with a bushy gray beard, but hair that is still dark.” Such physical details are not incidental; they serve Slosson’s stated goal of humanizing abstract thought. The visit to Metchnikoff’s laboratory becomes a tour of a “zoölogical garden,” where animals are kept for disease research—parrots, bats, chimpanzees—each tied to a specific scientific question. Slosson notes that Metchnikoff, like Agassiz, has “no time to get rich,” and that he donated his Nobel prize money to longevity research. These observations ground the philosopher’s ideas in a lived context, though Slosson admits he did not expect to gain “deeper insight into their mental processes” from the meetings.

The Catalog Subjects and the Actual Content

The Project Gutenberg record lists subjects such as Bergson, Poincaré, and Haeckel, but the excerpts show Slosson’s treatment is uneven. The Metchnikoff chapter, for instance, devotes considerable space to the Pasteur Institute’s architecture and history—the “bronze statue of Jupile,” the tomb of Pasteur, the bequest of the banker Osiris—before turning to Metchnikoff’s own work. Slosson’s interest in the setting sometimes overshadows the philosophy. He mentions Metchnikoff’s “Optimistic Studies” and his wife’s experiments, but the excerpt does not detail the core of Metchnikoff’s theories on aging or intestinal flora. Readers expecting a systematic exposition of each thinker’s system may find instead a journalist’s impression, filtered through Slosson’s own curiosity about the material conditions of intellectual life.

The Limits of the Excerpts

The available text covers only the preface and part of the Metchnikoff chapter. From this, it is impossible to assess how Slosson handled the other five figures—whether he gave equal space to Bergson’s élan vital or Haeckel’s monism, or whether he maintained the same blend of travel writing and summary. The preface suggests a consistent method: each chapter ends with directions for further reading, and the book is explicitly designed for “the general reader.” But without the full chapters, we cannot verify whether Slosson’s introductions achieve their aim of letting readers “drink at the source.” The catalog’s secondary topic “philosophy-ethics” may also be misleading; the Metchnikoff excerpt touches on ethics only obliquely, through the scientist’s personal austerity and dedication to prolonging life.

Slosson’s book is best approached as a period piece of intellectual journalism, not a definitive guide. Readers interested in Bergson, Poincaré, or Haeckel should treat these chapters as starting points, supplemented by the original works Slosson recommends. The value lies in the glimpses of early twentieth-century scientific culture—the Pasteur Institute’s menagerie, the Nobel prize’s impact, the transatlantic exchange of ideas—rather than in deep philosophical analysis.

Slosson’s visits to six busy minds remind me of the quiet patience he brought to each doorway. That same gentle stepping aside, letting a person speak first, lives in his later catalog of strangers and their puzzling habits. There is a softness between the two, like recognizing an old friend’s handwriting. See, for instance, Pearls & Parasites — Reading Companion, where wonder never hurries.