Split a piece of the heart of a green pine log into fine splints, about the size of a cedar lead-pencil, take 2 ounces of the same and put into a quart decanter, and fill the decanter with gin.

Let the pine soak for two hours, and the gin will be ready to serve. * be careful to strain all wood from drink before serving!*

Some history: http://query.nytimes.com/mem/archive-free/pdf?res=F40A17F7345C16... via http://gincocktails.net/gin-and-pine :