The Tirah campaign on the North-West Frontier between India and Afghanistan, near the Khyber Pass, was the first large scale conflict involving the British Army (8,000 British and 30,000 Indian troops) to which was attached a Surgeon-Major (W. C. Beevor) with an X-ray apparatus. It was manufactured by A. E. Dean of London and was supplied with three X-ray tubes by A. C. Cossor. A ll tubes survived unbroken! It was, though, only after the next major military operation by the British Army, in the Sudan in 1893 culminating in the Battle of Omdurman, that the military use of X-rays became well publicised. Figures [8.1-8.3]. The Surgeon-Major (J. Battersby) with this campaign recorded his experiences in the Archives of the Roentgen Ray^ in 1899 and presented his photographs and radiographs in a lantern slide lecture to the Röntgen Society of London as 'The present position of the Roentgen rays in military surgery’.