VOLUNTEERS delivered food and medicines to elderly people living alone in Milan, as another heatwave swept through northern Italy in what is the country's driest year since records began. The "City Angels" service operates all year but has been stepped up over the baking summer as Milan officials look to prevent vulnerable people from leaving their homes in high temperatures. On Friday, temperatures were expected to top 37 Celsius (98 Fahrenheit) and remain elevated on Saturday before the prospect of some welcome rain on Sunday. This year has so far been the driest since records began in 1800, according to…