Archaeologists with a joint American and Egyptian expedition near Luxor have uncovered a 4,000-year-old Middle Kingdom (1938 B.C.-1630 B.C.) tomb with several intact burials, Egyptian authorities announced on Friday. Along with the 11 sealed burials, the archaeologists also found jewelry, necklaces, bracelets, armlets, two copper mirrors with ivory handles, and scarab rings and girdles made of carnelian, garnet, faience and feldspar."One of the mirrors was found with a lotiform handle, while the second displays the rather rare design of a four-faced Hathor presenting her as a woman with austere features," Dr. Elena Pischikova, director of the South Asasif Conservation Project, which