The history of a pot of varnish

In Short

This book presents the fascinating industrial biography of artificial varnish, detailing its chemical composition, global supply chains, and manufacture in late-nineteenth-century America. It follows the journey of raw fossil resins—primarily gum copal from African and New Zealand deposits—as they are mined by indigenous diggers, imported through bustling trading ports, and transformed through rigorous technical processes into the lustrous finish protecting fine furniture and railway cars. The work has endured as a vivid historical window into the rise of American manufacturing and the romantic romance found in everyday commercial arts.

The Story

The account begins by exploring the natural and inborn mechanical curiosity of Americans, who delight in discovering the romantic origins behind prosaic manufactured objects. Varnish, an amber-colored fluid lending beauty and durability to workshops and studios, depends on three primary ingredients: a sticky resinous juice, linseed oil, and turpentine. While turpentine and linseed oil are readily accessible, the most valuable ingredient—gum copal—must be mined from a little beneath the earth's surface, where it has ripened for centuries.

Historically, America relied upon England and France for high grades of varnish, but enterprising traders soon recognized the value of importing gum copal directly from East India and African voyages. By the late nineteenth century, the United States emerged as a major consumer and producer, boasting thriving manufacturing houses. The narrative details an initiation into the Murphy & Co. factory in Newark, New Jersey, illustrating the meticulous personal supervision, plant organization, and devotion to uniform quality that propelled the firm to success over fourteen years.

To truly understand varnish, one must examine its core component, copal, whose amber-like masses often preserve ancient insects—such as butterflies, ants, and bees—trapped in the tertiary period. The narrative contrasts these artificial varnishes with the natural lacquers of China and Japan, derived directly from living trees. It then transports the reader to the distant port of Zanzibar, the primary market for fossil copal, describing the complex caravan trade, the bartering of ivory tusks, and the improvident native diggers who harvest the resin using short spears.

As demand surged, new resin fields emerged across West Africa, Madagascar, and the Philippines, along with Kauri gum from New Zealand. These raw materials arrive at the Newark factory, where young workers clean and sort the resins using specialized hatchets. Meanwhile, the oil-shop manager—trained at Columbia College—supervises the careful testing and boiling of linseed oil to ensure proper drying properties and elasticity.

The manufacturing process reaches its climax in the melting-room, where hard gums are liquefied over intense heat in copper kettles, blended with precise percentages of prepared oil, and thinned with turpentine. After thorough filtration, the varnish enters ripening tanks, where it must pass stringent tests by practical carriage painters. Varnish is notoriously whimsical, subject to dozens of paint-house "deviltries" that test the patience of craftsmen. To mitigate these issues, the firm also produces specialized "A. B. C. Surfacers" to prepare the foundational painted surfaces. Ultimately, American manufacturers have successfully cast off their dependence on European imports, establishing domestic supremacy and competing proudly in international markets.

How It Unfolds

• The nature of the fluid: The opening introduces varnish as an everyday amber-colored substance composed of resin, oil, and turpentine, driven by an inherent American curiosity about how things are made.
• The rise of domestic enterprise: The narrative charts the rapid growth of the American varnish industry, shifting from foreign reliance to domestic production and industrial leadership.
• A visit to the factory: An initiation into the Murphy & Co. works in Newark reveals orderly brick buildings, business efficiency, and the careful separation of every practical detail.
• The fossil amber and ancient insects: The text examines fossil copal through the lens of preserved prehistoric insects, explaining how sticky tree sap entombed ancient butterflies, bees, and spiders.
• Zanzibar and the gum diggers: The narrative travels to the East African coast to describe the Sultan's capital, the complex bartering customs of merchants, and the native diggers harvesting copal.
• Global resin fields: A survey of international trade highlights alternative varnish gums discovered in West Africa, Madagascar, Manila, and the rich Kauri forests of New Zealand.
• The oil-shop and technical precision: The technical core explores how raw linseed oil is tested, boiled, and aged for months to guarantee the final product's elasticity and clarity.
• Melting and the dreaded deviltries: The final stages detail the high-heat melting of gums, the addition of turpentine, and the whimsical "deviltries" that plague painters when varnish behaves unpredictably.

The People

• Mr. Murphy: The driving force and head of the Newark manufacturing firm, he desires absolute perfection and business growth, stands against careless methods, and ends up leading a nationally recognized enterprise with branches in Cleveland.
• Mr. Murphy’s Younger Brother: Trained at the Columbia College School of Mines, he manages the oil-shop, bringing technical education to bear on the delicate task of testing and preparing raw linseed oil.
• The Native Copal Diggers: Indigenous laborers in East Africa and the tropics who desire immediate sustenance, face the hazards of a harsh climate and sporadic work, and end up supplying the global market with raw fossil resins when driven by necessity.
• The Practical Carriage Painters: Craftsmen who use the finished varnish on coaches and fine furniture, frequently battle the mysterious "deviltries" of the fluid, and ultimately hold the final veto power over the quality of the manufacturer's output.

In Its Own Voice

• Describing the accidental preservation of prehistoric life, the text notes: > Encompassed in the pure, transparent mass, it is as perfectly posed as if it were in the sunshine of a June morning, resting its tissue wings and sipping the dew from a clover blossom. This highlights the poetic preservation of ancient resin samples found within the manufacturer's museum.
• Highlighting the unpredictable temperament of the finished product, the text observes: > Varnish is such a whimsical substance, and at times the best varnish is so unaccountably obstinate, that painters are agreed that it is in some manner allied to the evil spirit. This captures the folklore and daily frustrations shared between traditional painters and makers.
• Reflecting on the evolution of domestic industry, the text concludes: > In a very few shops the English article still maintains a show of supremacy, by virtue of the survival of the old-time prejudice against American goods. This explains the lingering colonial mindset that domestic manufacturers continually had to overcome.

What It's Really About

This work explores the intersection of romantic curiosity and practical industrial enterprise in nineteenth-century America. It investigates how raw natural phenomena—ancient tree resins hardened over millennia—are harnessed by modern chemistry, rigorous organization, and relentless personal supervision. Beneath the practical guide to resin grades and boiling points lies an argument about national maturity: America's transition from an agricultural and dependent importer into an industrial powerhouse capable of surpassing European craftsmanship. It questions the true cost of material wealth, contrasting the comfort of lavishly furnished homes and polished carriages against national extravagance and wastefulness.

Why Read It Today

Readers interested in industrial history, economic development, or the surprising romance hidden within everyday manufactured goods will find this book deeply rewarding. Reading it feels like taking a deliberate, unhurried walk through a nineteenth-century factory floor, guided by an observant narrator who appreciates both the smell of turpentine and the amber tomb of a prehistoric fly. Modern readers must navigate period attitudes toward tropical laborers and nineteenth-century trade practices, as well as terminology belonging strictly to the coach-building craft. Yet, the reward is a remarkably clear, grounded view of how an entire industry was forged from patience, cleanliness, and scientific inquiry.

What is your favorite example of an everyday object with a surprisingly complex manufacturing history?