Morse, Casement and McBride went to K to observe flags; Adams went to E for same purpose. In afternoon Mr. Cushing and I went up to see the Dirt. Gl. and ascended 2500 ft on grass slope to North. We had a fine view of upper part of Glacier which is very clean, and I made the first sketch in my new sketch book. The arrangement of the moraines on this Gl. is very puzzling. This peculiarity is undoubtedly due to advances and recessions of the ice The ice is now receding as shown by the great masses of ice, covered by debris up against the sides all of the mountains and connecting with the glacier below.