Scientists have found the writings of a 2nd-century Greek physician hidden beneath pages of religious text. At a quick glance, the archaic hymn book, which dates back to the 11th century, might not seem like anything particularly special, however hidden beneath its pages lies the treatise of one of the fathers of medical science - the Greek physician and philosopher Galen of Pergamon. It was written in ancient Syriac around 1,400 years ago, most likely by someone at St. Catherine's Monastery in Egypt. (Galen himself was born in 129 AD and died in 210 AD. ) Around 500 years later however, the ink was scraped off the pages and overwritten with religious psalms - a common practice at the time due to the high price of parchment. Researchers have spent several years attempting to decipher the original text using multispectral imaging and now, thanks to a team at SLAC's Stanford Synchrotron Radiation Lightsource, it looks as though success may be just around the corner. Unlike previous