The point which Battell had selected for crossing was a gap in this ridge. Directly below the gap the ridge was very steep but the top could be reached from this point by an easy incline towards the south. I made a hasty sketch of every prominent object on a direct line from the observatory to the gap which was the point we desired to reach as soon as possible, as we felt that our assistance was sorely needed. This work was completed to our satisfaction when we noticed the crew with the sledge coming around the north side, and we hastened down to meet them at the foot of the mountain on the east. We found everything in good shape for a rapid march: The sledge was lightly loaded with such appliances, ropes, pulleys, etc., as had been deemed necessary to enable us to render the most effectual assistance. The dogs were pulling on their harness as if anxious for a run, and the men were fresh, and feeling the need of exercise. The thaw had scarcely commenced and the traveling was good. Every condition seemed favorable. Captain Ganoe and myself led off along the route which our observations had indicated as the most practicable. In less than two hours we had reached the foot of the ridge just below the gap where we had discovered Captain Battell. We found the surface covered with volcanic ashes and scoria, and our minds instantly reverted to the earthquake which broke up the ice-field, and our narrow escape from destruction. However, this was no time for speculation. Our business was to reach the top as soon as possible. We found that a direct ascent would be exceedingly difficult, but that the inclining shelf along the face of the ridge would enable us to reach the top at a point about a half mile south of the gap. This shelf, or bench, was several yards in width and its appearance, covered as it was with ashes, gave the impression that it had been a level shore line that in some great convulsion of nature had been tilted up from the south at an angle of about twenty-five degrees, and that the general surface had been leveled up by a subsequent deposit over the lower part. We at once began our ascent along this comparatively easy route. Yet it was a tedious and toilsome effort to get the sledge with its load of necessary appliances to the top. However, within less than an hour, notwithstanding numerous resting spells, we reached the top and found ourselves on a level plateau, several hundred feet wide, and about one half mile south of where we expected to find Captain Battell and his comrades.