Early in guiding I conceived it to be my duty to start for the top with any one who cared to try it, and I felt bound also to get the climber to the top if possible. This was poor theory and bad practice. After a few exasperating and exhausting experiences I learned the folly of dragging people to the top who were likely to be too weak to come back. One day a party of four went up. Not one of them was accustomed to walking, and all had apparently lived to eat. After eight hard hours we reached the summit, where all four collapsed. A storm came on, and we were just leaving the top when daylight faded. It rained at intervals all night long, with the temperature a trifle below freezing. We would climb down a short distance, then huddle shivering together for a while. At times every one was suffering from nausea. We got down to timber-line at one o'clock in the morning. Here a rest by a rousing camp-fire enabled all to go on down. We arrived at the starting-place just twenty-four hours after we had left it! Mountain-climbing is not a good line of activity for an invalid or for one who shies at the edge of a precipice, or for any one, either, who worries over the possible fate of his family while he is on a narrow ledge. Altitude, the great bugbear to many, is the scapegoat for a multitude of sins. "Feeling the altitude" would often be more correctly expressed as feeling the effects of high living! The ill effects of altitude are mostly imaginary. True, climbing high into a brighter, finer atmosphere diminishes the elastic clasp--the pressure of the air--and causes physiological changes. These usually are beneficial. Climbers who become ill through mountain-climbing would also become ill in hill-climbing. In the overwhelming number of cases the lowland visitor is permanently benefited by a visit to the mountains and especially by a climb in the heights. Mountain-sickness, with its nausea, first comes to those who are bilious, or to those who are hurrying or exerting themselves more than usual. A slight stomach disorder invites this nausea, and on the heights those who have not been careful of diet, or those who celebrated the climb the evening before it was made, are pretty certain to find out just how mountain-sickness afflicts. Altitude has, I think, but little to do with bringing on so-called mountain-sickness. It is almost identical with sea-sickness, and just as quickly forces the conclusion that life is not worth living! Usually a hot drink, rest, and warmth will cure it in a short time.