The Popular Science Monthly, September, 1900: Vol. 57, May, 1900 to October, 1900

In Short

This collection of essays from the 1900 volume of The Popular Science Monthly offers a panoramic view of the scientific preoccupations of the Edwardian era. It bridges the gap between pure research and public application, covering everything from the mechanics of bird flight and the emerging electric automobile to the psychology of belief and colonial sociology. By documenting the shift from Victorian-era traditions to the industrial and analytical rigor of the new century, it provides a vital record of how the modern world began to define its relationship with technology.

The Story

The narrative arc of this collection moves from the challenges of the human mind to the mechanical and physical mastery of the natural world. It begins by examining the "occult," a catch-all term the authors use to describe spiritualism and Christian Science—movements they view as parasitic, irrational threats to the authority of medicine and psychology. The argument is clear: the modern individual must reject these emotional delusions in favor of a "vigorous and critical application of a scientific logic."

From this defense of rationalism, the text pivots to the physical world. It investigates the "flying machines" of nature, analyzing the wing structures of hummingbirds and frigate birds to illustrate how evolution solves the problem of flight. This fascination with mechanics extends to the growing urban landscape, where the electric automobile is touted for its simplicity, lack of heat, and freedom from the unpleasant odors associated with traditional transport. The text then scales up from machines to the universe itself, discussing the conservation of energy—demonstrated through falling water at Niagara or the heat of a meteor—and the use of the spectroscope to identify the chemical composition of distant stars.

As the collection progresses, the focus turns to the intersection of science and sociology. One exploration into the "psychology of red" analyzes why this color dominates human ritual, art, and sexual symbolism, linking plant biology and the physics of light to the deeper, primal reactions of the human brain. This leads into an analysis of the working classes, where the author argues for a more rigorous, scientific approach to economics. By tracking the dietary habits and expenditures of families, social scientists aim to move beyond vague observations toward a precise, data-driven understanding of human welfare.

The final movement of the book shifts to the global stage, specifically the "conquest of the tropics." Here, the language reflects the period’s colonial fervor. The authors argue that modern sanitation, refrigeration, and transportation will render the tropics habitable for Northern settlers. They advocate for an aggressive, top-down imposition of Western hygiene and law, predicting that under the guidance of "purer-blooded" races, these regions will be transformed into garden spots. The collection concludes with a summary of the latest advancements in biology and the legal frameworks—such as the Lacey Act—being established to manage the environment, leaving the reader with a sense of a world being systematically organized, cataloged, and brought under the firm command of human reason.

How It Unfolds

The battle for the mind The authors challenge the resurgence of spiritualism and metaphysical healing, framing them as emotional failures of the intellect. They argue that these movements pose a danger to society by ignoring established medical and psychological truths.

The mechanics of nature The focus shifts to the physical world, comparing the structural engineering of birds to human attempts at flight. This transition establishes a theme of biomimicry, where nature serves as the primary blueprint for industrial innovation.

The power of the engine Technological progress is highlighted through the rise of the electric car and the efficient use of energy. The narrative emphasizes the cleanliness and reliability of these new machines as a harbinger of a more orderly urban life.

The spectrum of the cosmos Scientific inquiry expands to the stars, using the laws of light and heat to bridge the distance between Earth and the celestial bodies. This section reflects the late-nineteenth-century breakthrough of understanding the universe through chemical composition rather than mere observation.

The regulation of society The book concludes by applying scientific methodologies to human behavior and colonial expansion. It calls for using statistics to manage social welfare and suggests that the future of the tropics depends on the systematic replacement of "ignorant" customs with modern administration.

The People

The book features a cast of thinkers and figures who embody the intellectual tensions of 1900. Professor Joseph Jastrow acts as the primary voice of rationalist criticism, attacking the "unintellectual" occultists who abandon logic for personal comfort. In contrast, figures like Mary Baker Eddy are presented as cautionary examples of charismatic leaders who lead the credulous away from the path of science.

In the realm of biology and physics, the work of researchers like C.O. Whitman and Jacques Loeb is highlighted. These men represent the new vanguard of laboratory science, focusing on artificial fertilization and genetics, pushing the boundaries of what is known about the "fundaments of living matter." Meanwhile, the anonymous "working classes" are the subjects of a new, clinical observation by economists, who seek to replace guesswork with data. Finally, the "tropical dwellers" are viewed through the lens of early-century sociology, depicted as people whose lack of hygiene and education makes them subjects to be "developed" or replaced by more efficient, modern civilizations.

In Its Own Voice

"It is a weak though comprehensible nature that becomes bewildered in the presence of a few experiences that seem homeless among the generous provisions of modern science, and runs off panic-stricken to find shelter in a system that satisfies a narrow personal craving."

This remark sets the tone for the authors' dismissal of spiritualist beliefs as a regression from modern thought.

"The red rays are life to the chlorophyll-bearing plant, the violet rays are death."

This observation is used to explain how the physical properties of light dictate the growth and development of organic life.

"With the masses educated and with wholesome laws, these islands will all become garden spots, and will ultimately be occupied by pure-blooded Anglo-Saxons, the present inhabitants disappearing before the stronger and purer-blooded race."

This statement encapsulates the era’s prevailing and harsh attitudes regarding colonial expansion and racial hierarchy.

What It's Really About

At its core, this volume is an argument for the total supremacy of the scientific method. It treats the world—from the color of a flower to the diet of a workman—as a system that can be measured, optimized, and controlled. It wrestles with the fear that modern life, despite its technological triumphs, remains vulnerable to the "contagion" of irrationality and superstition. The central question is whether human logic can sufficiently organize society to handle the complexities of a globalizing world. It reflects a profound belief in progress, coupled with a rigid, sometimes exclusionary definition of what constitutes a "civilized" and "rational" society.

Why Read It Today

Reading this book is a disorienting, illuminating experience. It is not a textbook, but a mirror reflecting the specific anxieties and hopes of the year 1900. You will encounter a world that feels both hauntingly familiar and deeply alien. The scientific debates—about energy conservation, biology, and the potential of electric vehicles—are presented with an infectious, if naive, optimism that is startling to a modern reader.

However, one must be prepared for the period’s prevailing attitudes. The essays on colonial sociology and the "conquest" of the tropics are starkly representative of the era’s racial prejudices and imperialistic zeal. These passages offer no apology, making them challenging but necessary reading for anyone seeking to understand the historical foundations of current social and geopolitical structures. The prose is precise and elevated, lacking the bite of modern skepticism, which gives the book a formal, authoritative weight. If you are interested in the history of ideas or the slow, often clumsy evolution of the scientific mindset, this collection provides an unparalleled entry point. You will likely walk away from it with a keener sense of how the scientific and societal definitions of "modernity" were constructed, and perhaps a humbler view of how much our own "scientific" certainties might appear to future generations.