The account of the expedition of the two clergymen, Björn and Helgi, written in the same year that it was undertaken, is now, in Icelandic, in the British Museum. It is full of interest, and sufficiently curious to deserve attention. Björn and Helgi were brothers-in-law. In the summer of 1654, they met at Nes, where they had some conversation about Thorir’s dale, and Helgi told his brother-in-law that he was convinced that either the valley itself, or some traces of it, could be seen by any one who would ascend the highest ridge of Geitlands Jökull. In consequence of this conversation, Björn, attended by two men, rode to Húsafell, where lived his sister and brother-in-law, and persuaded Helgi to accompany him on the glacier. Húsafell lies just under Ok. They started at an extremely early hour on St. Olaf’s Day (28th July), without mentioning their intention to any one. This was on Thursday. They soon turned from the highway, following the west side of a cleft that enters a trunk-ravine near Húsafell,[22] and then, reaching the north side of Ok glacier, they halted. There was a young man, Björn Jónsson by name, with the two clergymen, a well-educated man; to him they now, for the first time, told their purpose, and they positively declared that they were determined to go at once across Kaldidalr, and thence ascend Geitlands Jökull, striking due east. His curiosity was aroused, and he agreed to go with them. They took with them, also, a little boy, intending, if they reached a precipice commanding the valley which they could not descend themselves, to let the boy down by a rope, that he might examine the place. They had with them a tent, and provisions for several days.