PHILADELPHIA,- A former prison in Philadelphia said visitors during the weekend will be able to sample meals from three periods in the facility's 142-year history. Eastern State Penitentiary officials said the menu for the weekend includes "Indian Mush" from the 1830s, hamburger steak with brown gravy and Harvard beets from the 1950s, and Nutraloaf, a product still used in many prisons to this day, the Philadelphia Daily News reported Friday. "It's one thing to talk about how the food changed over time. It's another to sample it," said Sean Kelley, senior vice president and director of public programming and public...