“As we mounted higher the wind blew much stronger, and drove larger flakes of snow before it: fortunately we had the wind in our backs, which facilitated our ascent; but we met at the same time with so much loose snow that our progress was but slow. Hoping, however, that the weather would change, we agreed not to return till we had gained the summit, from which arose a black rock. “At length, after two hours’ longer tramp, we found that we could discover nothing in the distance. A rampart of burnt rock of no considerable height rose above the ice, and at this we paused to rest. The snowflakes now obscured the air so much that we hardly knew how we should get back: we examined the compass, but without observing any change; and we were prevented by our guides from going towards the north-west, where the mountain is highest and least accessible. The weather continued the same, so that we found it impossible to resist the cold much longer, and deemed it prudent to return. “Although the sky was very heavy and dark, we discovered, on our return, the entrance to a valley; if the weather had been more favourable we should doubtless have had the pleasure of investigating it; but we doubt whether we should have found Thorir’s dale. As we descended we found the wind in our face, which threw the snow so much against us that we could not discover the traces of our ascent.” This expedition was frustrated by the inclemency of the weather. Messrs. Olafsen and Povelsen made the mistake of starting in the morning. In Iceland vapours form over the mountain tops directly that the evening sun loses its power, and although there is no night, the air is sensibly colder after 6 P.M. They had the fine part of the day for the ascent from Kalmanstúnga to the snow, and their journey over the glacier was at a time when they might almost have calculated on cloud and snow. Probably they had not seen the description of the discovery made by Björn and Helgi in 1654. They allude to the expedition of these clergymen, but give one of them a wrong name, and speak of their journal as vague and confused, which it is not.