House Rats and Mice

In Short

This 1917 United States Department of Agriculture bulletin serves as a technical manual for the eradication of rats and mice. It argues that isolated attempts to trap or poison are futile without comprehensive "rat-proofing" of buildings and the strict management of food waste. By blending biological insights—such as the rapid reproductive rates of rodents—with construction advice and organized community action plans, the book provides a blueprint for a total, structural war against these pests. It remains a historical artifact of early 20th-century public health and agricultural administration.

The Story

The narrative begins by establishing the rat as a formidable enemy of human civilization. The text outlines a grim reality: rats consume or spoil massive quantities of grain and property while serving as primary vectors for lethal diseases, including the bubonic plague. The author frames the problem not as a simple matter of pest control, but as an ongoing failure of human organization. Because humans have unwittingly provided rats with abundant food and secure "fortresses" in the form of poorly constructed buildings, the rodents have flourished. The brown rat, in particular, is highlighted for its staggering reproductive capacity; the book calculates that a single pair, if left unchecked, could theoretically produce hundreds of millions of descendants within three years.

The middle portion of the work shifts from the nature of the threat to the mechanics of defense. It argues that the only path to success is to deny the animals their three basic requirements: shelter, food, and breeding grounds. The author advocates for a revolution in building standards, championing concrete as the primary material for foundations, cellars, and warehouses. By sealing pipes, elevating wooden structures, and using wire mesh to secure openings, homeowners and businesses can starve the rats out. This section serves as a practical, step-by-step guide to remodeling urban and rural environments to make them inhospitable to rodents.

The final arc of the bulletin addresses the active destruction of existing populations. The author evaluates various weapons—traps, poisons, domestic animals, and even fumigation—with cold, clinical precision. Traps are categorized, with the "guillotine" style preferred over ineffective cage traps, while poisons are handled with a stern warning about safety. The author is notably skeptical of commercial "rat viruses," citing failed laboratory experiments. The book concludes with a call for collective action. It posits that individual effort is wasted if neighbors remain complacent. By organizing community hunts, enforcing municipal sanitation codes, and protecting the natural predators of rats—such as hawks and owls—society can transition from a state of constant, losing combat to one of effective repression and control.

How It Unfolds

The nature of the plague The book establishes the rat as an omnivorous menace that destroys property and spreads fatal diseases. It highlights the staggering mathematics of rat reproduction to emphasize the urgency of the situation.

The architecture of exclusion The focus shifts to structural preventative measures, emphasizing the use of cement and metal to block access. It provides clear, actionable instructions for making homes, granaries, and warehouses physically impassable to rodents.

The tools of eradication The text systematically reviews various methods for killing pests, including specific types of traps and chemical poisons. It offers a critical evaluation of each tool's effectiveness, reliability, and potential for accidental harm to humans.

The need for organized defense The final sections move beyond the individual property owner to advocate for municipal ordinances and collective neighborhood efforts. It argues that only through consistent, large-scale cooperation can the rat population be permanently reduced to a manageable level.

The People

While there are no characters in the literary sense, the book revolves around two opposing forces: the "intelligent" human agent and the "formidable" brown rat. The human reader is cast as a manager of their own environment, tasked with overcoming habits of negligence that have allowed pests to thrive. The farmer and the city storekeeper are the primary targets of the advice; their success depends on their ability to adopt modern, scientific methods of construction and sanitation. Standing in their way is the rat, presented as a resilient and adaptive survivor that exploits every oversight. The rat acts as a mirror for human failing: it only wins where the human has failed to build correctly, failed to store food properly, or failed to cooperate with their neighbors. Ultimately, the successful reader is transformed from a victim of "animal pests" into a proactive guardian of their own property and community health.

In Its Own Voice

The following passages illustrate the author's stark view of the rodent threat and the necessity of total, organized exclusion:

The rat is the worst animal pest in the world.

This opening declaration sets the tone for the entire bulletin, framing the rodent as a global menace.

If we are to fight them on equal terms we must deny them food and hiding places.

This captures the author’s core strategy, asserting that structural denial is more effective than any single trap or poison.

What It's Really About

At its core, this book is about the necessity of environmental control as a prerequisite for public health and economic stability. It argues that pestilence is a consequence of human infrastructure; when we build poorly or manage waste carelessly, we create the conditions for our own ruin. The book asks us to consider our relationship with the built environment—how our homes and cities are not merely shelters for people, but potential ecosystems for parasites. It champions the idea that the "war" against nature is won not by brute force, but by scientific design and the enforcement of civic responsibility. Ultimately, it is a call for a more disciplined, modern, and communal approach to the spaces we occupy.

Why Read It Today

Readers interested in history, agriculture, or the evolution of public health policy will find this a fascinating look at the early 20th-century mindset. It provides a sharp, detailed glimpse into how the American government communicated technical solutions to a citizenry that was often dealing with primitive building standards and unchecked disease. The writing is remarkably direct and devoid of modern fluff, feeling like a conversation with a firm, pragmatic expert.

However, a modern reader must be prepared for the book's stark, utilitarian view of animals. The author discusses killing methods—such as poisoning or the use of ferrets—with complete emotional detachment, which may be jarring to some. Additionally, the text reflects the period's specific concerns, such as the intense focus on bubonic plague, which felt immediate in 1917. While the construction advice remains largely applicable today, the book is best read as an artifact of its time: a testament to a period when the government believed it could, and should, organize every citizen into an army against the natural world. It leaves the reader with a heightened, perhaps even obsessive, awareness of the structural vulnerabilities in their own home.