The history of a pot of varnish

The history of a pot of varnish by Anonymous is an industrial and technical account written in the late 19th century. It explains how varnish is made and used, emphasizing the sourcing of resin gums, the preparation of linseed oil and turpentine, and the manufacturing craft, with special attention to the practices and standards of Murphy & Co. The likely topic is the journey of varnish from raw materials to finished product within a growing American industry.

The book opens by celebrating American curiosity about how things are made, then explains varnish’s three essentials—fossil resin (especially gum copal), linseed oil, and turpentine. It tours global resin sources (Zanzibar, Accra, New Zealand’s kauri fields), notes fossil gums with trapped insects, and contrasts fresh versus fossil resins. It then moves inside the factory: sorting and cleaning gum, boiling and refining oils, melting and combining ingredients, filtering, and long “ripening” in tanks, all overseen by testing to prevent the familiar “deviltries” painters face (crawling, specking, blistering). The narrative profiles Murphy & Co.’s Newark and Cleveland works, their meticulous cleanliness, in-house cooperage and tin shop, laboratory, and even a publication office, and explains their prepared “A.B.C. Surfacers” to ensure sound undercoats. It closes by framing the firm’s role in helping American varnishes rival and surpass imported grades, reflecting broader industrial confidence and expansion.