On the 27th of that month Messrs. Collie, Hastings, and Robinson made a determined attack on the ghyll. The winter was exceptionally fine and the rocks were clean and dry. They easily reached the Tennis Court ledge, and thence traversed into the gully. Penetrating the cave below the big pitch, Dr. Collie, who was leading, climbed up to the roof and out by a small window between the jammed boulders. Thence, by the ingenious expedient of hacking at a thin undercut plate of rock, he exposed a small foothold on the wall that enabled him to traverse out from the pitch and into a place of safety beyond. Thence to the top of the pitch was an easy matter, and the remaining members of the party quickly followed him. It has since been discovered that the hardest part of the gully was yet before them. They, however, had practically solved the main problem, and were contented to work out of the gully by steep ‘mantelshelf’ climbing up to the left. The honour of the first strict ascent of Moss Ghyll fell to Dr. Collier a few days later, who climbed the ghyll from beginning to end under the impression that the previous party had done the same. Dr. Collier was accompanied by four others, and was emphatic in his opinion that the final chimney represented the hardest part of the climb. Two days later he took up Professors Marshall and Dixon, and from the former I obtained sufficient information to start off one morning on my own account to learn for the first time what Moss Ghyll was like. It was distinctly a day of adventure, and I learnt a great deal concerning the ghyll. The passage across the Collie step appeared to me the most difficult, but the loose slabs over which one has to walk adroitly were then covered with fresh snow. The famous step was invisible, and I had to stoop and scrape in order to determine its exact shape and position. At the first attempt on the traverse I slipped, and fell into the snow-bed of the gully below. The result was scarcely surprising, though eminently uncomfortable. But the falling was, under the circumstances, almost part of the programme, and a rope had been fixed in the interior of the cavern, passed out through the ‘window,’ and then attached to my waist, to eliminate the danger of plunging some 400 feet down to the foot of the gully. The second attempt was successful, though I confess to a feeling of lively apprehension as the critical point was being passed.