From Jeff via NPR: Many old cocktail recipes contain raw eggs, including this recipe for Egg Nogg. It's a practice that died out probably around the time salmonella came into the picture. But never fear! NPR shows us that the alcoholic content of, in this case, Eggnog is enough to inhibit the growth of harmful bacteria.
Video: More Evidence That Eggnog Goes Better With Booze (NPR)
And for further old-timey cocktail reading (via Graham): Ladies United for the Preservation of Endangered Cocktails
"This site is dedicated to the Gin Fizz, the Widow's Kiss, and the Singapore Sling – the drinks our mothers and grandmothers drank, the drinks we strive to save from extinction as a small measure of remembering those great women and their great cocktail parties."