There was an article in the New Yorker of 03/13/06 about a man in France who reverse engineered absinthe from some old bottles.
Apparantly what is commonly drunk today is nothing like the old stuff.
"Since starting production at Saumur, nearly two years ago, Breaux's company, Jade Liqueurs, has brought out three varieties of absinthe: Verte Suisse 65 is an attempt to faithfully recreate an absinthe made during the nineteenth century, by the Swiss company C. F. Berger; Absinthe Édouard 72 mimics the taste of the drink distilled around the same time by Édouard Pernod; Nouvelle Orléans is made to Breaux's own recipe and is designed to approximate the kind of absinthe that might once have been made in his home town. The bottles have elaborate labels redolent of the Belle Époque and sell for nearly a hundred dollars—more if you order some of Jade's reproduction absinthe spoons and glassware. In countries where the retailing of absinthe is legal, such as England, Breaux's absinthe is stocked at upscale outlets, like Fortnum & Mason. Americans can order bottles through a couple of Internet retailers. Breaux makes only about five thousand bottles each year, not enough to satisfy demand, and says he's not interested in producing on a larger scale: "I want to make people realize that the drink is artisanal.""
Chad