'Extract of a letter of Dr. Atchison addressed to Colonel Sykes, dated Peshawar, 24 February 1850' in which he writes how he left Aurangabad to carry out Sykes' wishes for information about the Sulphur Range and the mineral hills around Peshawar. He has become well acquainted with the locality but cannot visit the range because of snow. He writes of the minerals that he has found and what would be necessary to mine and refine them. The letter describes also the geography and the inhabitants of the region.