Colorado Springs, October 28.

It is difficult to make this anything of a letter. I have been riding for a whole week, seeing wonders and greatly enjoying the singular adventurousness and novelty of my tour, but ten hours or more daily spent in the saddle in this rarefied, intoxicating air, disposes one to sleep rather than to write in the evening, and is far from conducive to mental brilliancy. The observing faculties are developed, and the reflective lie dormant.

That night on which I last wrote was the coldest I have yet felt. I pulled the rag carpet from the floor and covered myself with it, but could not get warm. The sun rose gloriously on a shrouded earth. Barns, road, shrubs, fences, river, lake, all lay under the glittering snow. It was light and powdery, and sparkled like diamonds. Not a breath of wind stirred, there was not a sound. I had to wait till a passing horseman had broken the track, but soon after I set off into the new, shining world. I soon lost the horseman's footmarks, but kept on near the road by means of the innumerable footprints of birds and ground squirrels, which all went in one direction. After riding for an hour I was obliged to get off and walk for another, for the snow balled in Birdie's feet to such an extent that she could hardly keep up even without my weight on her, and my pick was not strong enough to remove it.