~Boundary with Afghanistan.~--We must now return to our starting-point at the eastern extremity of the Hindu Kush, and trace the boundary with Afghanistan. The frontier runs west and south-west along the Hindu Kush to the Dorah pass dividing Chitral from the Afghan province of Wakhan, and streams which drain into the Indus from the head waters of the Oxus. At the Dorah pass it turns sharply to the south, following a great spur which parts the valley of the Chitral river (British) from that of its Afghan affluent, the Bashgol. Below the junction of the two streams at Arnawai the Chitral changes its name and becomes the Kunar. Near this point the "Durand" line begins. In 1893 an agreement was made between the Amir Abdurrahman and Sir Mortimer Durand as representative of the British Government determining the frontier line from Chandak in the valley of the Kunar, twelve miles north of Asmar, to the Persian border. Asmar is an Afghan village on the left bank of the Kunar to the south of Arnawai. In 1894 the line was demarcated along the eastern watershed of the Kunar valley to Nawakotal on the confines of Bajaur and the country of the Mohmands. Thence the frontier, which has not been demarcated, passes through the heart of the Mohmand country to the Kabul river and beyond it to our frontier post in the Khaibar at Landikhana. From this point the line, still undemarcated, runs on in a south-westerly direction to the Safed Koh, and then strikes west along it to the Sikaram mountain near the Paiwar Kotal at the head of the Kurram valley. From Sikaram the frontier runs south and south-east crossing the upper waters of the Kurram, and dividing our possessions from the Afghan province of Khost. This line was demarcated in 1894. At the south of the Kurram valley the frontier sweeps round to the west leaving in the British sphere the valley of the Tochi. Turning again to the south it crosses the upper waters of the Tochi and passes round the back of Waziristan by the Shawal valley and the plains about Wana to Domandi on the Gomal river, where Afghanistan, Biluchistan, and the North West Frontier Province meet. The Waziristan boundary was demarcated in 1895.