By 1896 an x-ray department had been set up at the Glasgow Royal Infirmary, one of the first radiology departments in the world. The head of the department, Dr John Macintyre, produced a number of remarkable x-rays: the first x-ray of a kidney stone; an x-ray showing a penny in the throat of a child, and an image of a frog's legs in motion. In the same year Dr Hall-Edwards became one of the first people to use an x-ray to make a diagnosis - he discovered a needle embedded in a woman's hand. In the first twenty years following Roentgen's discovery, x-rays were used to treat soldiers fighting in the Boer war and those fighting in WWI, finding bone fractures and imbedded bullets. Much excitement surrounded the new technology, and x-ray machines started to appear as a wondrous curiosity in theatrical shows.