Appletons' Popular Science Monthly, May, 1900: Vol. 57, May, 1900 to October, 1900

In Short

This collection brings together essays from turn-of-the-century thinkers examining natural phenomena, industrial engineering, civic planning, and human society. From astronomical observations of a solar eclipse and studies of blind cave fish to analyses of municipal finance and international peace conferences, it charts an era of rapid scientific advancement. The volume reflects the intellectual spirit of 1900, demonstrating how empirical observation began reshaping every aspect of daily life, public policy, and global relations. It survives as a vivid historic artifact of American scientific optimism and institutional growth.

The Story

The volume opens on a note of imminent cosmic wonder, detailing preparations for the total solar eclipse of May 28, 1900. Astronomers and amateurs prepare specialized equipment, such as long-focus lenses and sand-piston mountings, taking advantage of a rare celestial event passing conveniently through the American South. From the heavens, the focus shifts sharply down to the grounded realities of human systems, beginning with a critique of New York City's municipal finances. The text examines how arbitrary debt limits penalize public investments in revenue-generating assets like docks and waterworks, contrasting New York’s immense budget with European capitals.

Nature and biology soon claim the spotlight. Readers encounter minute observations of spittlebugs making froth through air-clasping tails, along with natural history notes tracking bird migrations and breeding habits in the Adirondacks. Evolution and adaptation come under scrutiny in a detailed look at subterranean blind fish, evaluating theories by Herbert Spencer on how species gradually lose sight after venturing into dark caves.

Broadening its scope, the text traces a century of progress in chemistry and electrical application, highlighting how electroplating, batteries, and the birth of automobiles stem from chemical dynamics. Physical geography appears in a vivid survey of Mount Tamalpais, charting its strategic position overlooking San Francisco Bay and thousands of square miles of California water channels.

Moving into human affairs, the volume tackles social and legal developments. It considers post-Civil War African American demographics and cultural typologies, while another contributor reflects on the evolution of international law. The narrative traces this legal progress from Francis Lieber’s Civil War military manual through the 1874 Brussels Conference to early proposals for international arbitration courts.

Toward its conclusion, the volume adopts a critical lens on national character and public psychology. An editorial essay dissects wartime hysteria, journalistic credulity, and the loss of individual critical thinking during the Spanish-American War, warning against imperial boastfulness and Anglo-Saxon chauvinism. The issue closes with practical scientific miscellany—including a clever acoustic method using pistol shots to locate blockages in pneumatic mail tubes—alongside institutional notes on international academic federations and marine biology laboratories, grounding its lofty inquiries in practical institutional work.

How It Unfolds

Observing the heavens Scientists and amateur observers prepare custom telescopes and steady, sand-piston mounts to capture delicate photographic records of the approaching 1900 solar eclipse across the Southern states.

Evaluating the metropolis An analysis of New York City’s 1900 budget reveals structural financial paradoxes where acquiring profitable public waterfronts artificially restricts the city's constitutional borrowing capacity.

Examining small creatures Microscopic and field observations detail how bubble-blowing insects harvest air to create protective froth, while naturalists track bird migration schedules and nesting behaviors in the Adirondacks.

Probing evolutionary darkness An investigation into blind cave fish tests evolutionary theories, suggesting their sightless condition stems from ancestral habits, negative responses to light, and subterranean adaptations.

Tracing chemical energy A historical overview outlines a century of chemical and electrical discoveries, showing how voltaic batteries, electroplating, and early electric automobiles emerged from intertwined physical forces.

Mapping coastal topography Geographical surveys outline the wide panoramic reach of Mount Tamalpais, illustrating its view over San Francisco Bay, key water gaps, and California's expansive interior drainage systems.

Codifying global law Legal writers trace the growth of international rules of engagement from Lieber’s Civil War manual to the Conference of Brussels, advocating for impartial arbitration courts to resolve international disputes.

Critiquing national hysteria Editorial essays warn against mob mentality, media credulity, and blind jingoism during times of war, urging nations to practice justice, humanity, and self-restraint rather than boastful expansionism.

Solving practical problems Engineers successfully locate an obstruction inside a buried municipal pneumatic mail tube by measuring the precise echo delay of a pistol shot fired into the pipe.

The People

• Frank H. Bigelow seeks to guide professional and amateur astronomers in capturing clear photographs of the upcoming solar eclipse. Hindered by field conditions and unstable equipment, he advocates using fixed lenses and sand-piston supports to keep long telescopes perfectly steady.
• Francis Lieber works to restrain the cruelties of armed conflict by writing a standard code of conduct for soldiers in the field. Commissioned by Abraham Lincoln during the American Civil War, his manual provides a template later adopted by major European powers.
• Herbert Spencer provides a theoretical explanation for how surface animals evolved into blind cave species over generations. He argues that creatures entering dark caverns adapt step-by-step, losing unnecessary organs through disuse.
• Mr. Batcheller faces the commercial challenge of finding a stuck carrier hidden deep within an underground municipal transit line without digging up entire city streets. He solves the issue by using sound-wave reflection from a pistol shot to pin down the exact location.

In Its Own Voice

"The circumstance which renders the coming total eclipse of the sun, on May 28, 1900, of special significance to thousands of people who might otherwise entirely overlook the occasion is the fact that the path of the moon’s shadow over the surface of the earth, or the track of the eclipse, is in such a convenient locality--namely, in our Southern States--as to render the places of visibility easily accessible."

A Weather Bureau professor explains why an upcoming celestial event offers an unprecedented opportunity for public observation.

"To the action of the current upon metallic solutions we owe the electrotype and all our processes for electroplating, and these represent only the beginnings of usefulness."

A retrospective on a century of chemistry illustrates how fundamental lab discoveries directly enabled major modern industries.

"When men become unwilling, or uncaring, to ascertain the truth for themselves they inevitably display a great willingness to swallow any statement which may obligingly be offered them by some one else."

An editorial essay reflects critically on public credulity and the spread of sensational rumors during wartime.

What It's Really About

Underneath its disparate topics, the text explores how scientific methodology transforms raw human observation into structured, practical knowledge. It asks whether empirical reasoning—which successfully mapped mountain ranges, calculated acoustic echoes, and illuminated chemical reactions—can also be applied to messy human domains like city management, international diplomacy, and wartime public discourse.

The collection continuously weighs individual observation against systematic law. Whether tracking bird arrivals in the Adirondacks, analyzing the decline of eyes in cave fish, or establishing international arbitration tribunals, the underlying argument remains constant: progress requires substituting disciplined, verifiable facts for unexamined tradition, emotional impulse, and nationalistic bluster.

Why Read It Today

This issue offers a fascinating window into the American mind at the dawn of the twentieth century. It appeals to readers who enjoy history of science, urban history, and historical essays, providing an unvarnished look at how late-Victorian intellectuals viewed everything from the future of electric vehicles to the psychology of media panics. Reading it feels like browsing through an intellectual time capsule where high scientific ambition coexists with quirky period experiments, such as testing whether crows will eat alcohol-soaked corn or attempting to capture a small owl with a watch chain.

Modern readers should be prepared for period-typical language and attitudes, particularly in essays addressing race and social anthropology, which reflect the flawed classifications and assumptions of 1900. The prose is clear, measured, and formal, free from modern jargon, though detailed technical descriptions of telescope mountings or municipal tax frameworks require patient reading. What stays with you is the collection's enduring commitment to rational inquiry—a belief that careful measurement, open debate, and scientific rigor remain our best tools for understanding the physical world and governing human society.