Flip through this slim 1807 pamphlet — small enough to carry in a saddlebag — and you'll find a startling pattern: nearly every wound and skin-infection recipe begins with the same humble pantry ingredient. Honey.

The very first entry sets the tone:

1. A digestive Ointment. Venice turpentine one ounce, the yelk of two eggs, honey, and tincture of myrrh, an ounce of each.

For cracked heels, the unknown compiler offers an ointment of "Turpentine, honey, hog's lard, and burnt alum, equal quantities." For "the Grease" — a stubborn bacterial dermatitis on horses' fetlocks that still plagues stables today — the prescription is even more elaborate:

First bleed the horse, and put a rowel in the bottom of his belly; then take 4 oz. of oil of olives, 1 lb. of honey, and 1 lb. of alum, 2 ounces of white sugar candy, one drachm of white vitriol, beaten all very fine... warm it, and then spread it upon some tow, and bind it to the sore.

Strip away the bloodletting and the rowel (a barbaric drainage device), and what remains is essentially a medical-grade honey dressing — exactly the treatment that modern wound-care clinics rediscovered in the 1990s and now sell for $40 a tube.

The science is now well-established. Honey is hygroscopic (it pulls water out of bacteria), naturally acidic (pH ~3.5–4.5, hostile to most pathogens), and slowly releases hydrogen peroxide through the glucose-oxidase enzyme. Manuka honey from New Zealand is so effective against MRSA and chronic non-healing wounds that it's FDA-cleared as a medical device. Hospitals use it on diabetic ulcers, burns, and surgical sites that won't close.

The 1807 farrier didn't know about Staphylococcus or hydrogen peroxide. But he — or whichever country veterinarian's notebook he was copying from — had observed something real: horses treated with honey-and-alum poultices got better. The alum (an astringent aluminum salt) also has documented antimicrobial activity. The olive oil kept the dressing pliable. Even the bizarre-sounding "white sugar candy" makes sense — sugar dressings are still used today in resource-limited clinics, working by the same osmotic mechanism as honey.

What strikes me most is how casually the recipe is presented. No theory, no mechanism, no claim of novelty — just "this is what works." The book is essentially a pre-germ-theory clinical pocket reference, encoding generations of stable-yard observation into something a traveler could carry on horseback. Most of its remedies have been (rightly) abandoned. But the honey wound dressings outlived the germ-theory revolution that should have killed them, came back into hospitals two centuries later, and now coat the bandages used on Iraq War veterans.