By AMANDA POPE Staff reporter The 25,000 New York Times news photographs of Canada now archived in the Ryerson Image Centre represent a “treasure trove” for journalism historians and researchers, says the head of the Ryerson Journalism Research Centre. The collection of photos dating from about 1910 until 1990 includes images of major Canadian political events and conflicts, landscapes, sports heroes, candid reportage on the lives of diverse communities and portraits of notable Canadians. “I can imagine researchers using the archive for projects on everything from who and what was considered newsworthy in Canada during those years to how outsiders…