two-family 33-3 9/25- Ullupser. Large igloo on process of construction - Tanquiski + Inakuti 25-VIII - See p. 30. 29.VIII Eider Duck Island - Gray feld- felspathic gneiss including rounded masses of hornblende gneiss. Excellent example of an igneous gneiss carrying magmatic inclusions of an older gneiss which have been rounded by resorption. Highest point of the island is 60-75 feet above the sea. This and other points have been rounded and smoothed by the grinding action of the sea ice and many other smoothed surfaces indicate abrasion by the ice. The gneiss is intersected by many veins of pegmatite. These consist mainly of feldspar and some are strong - 1 to 2 ft. across. Dalrymple Rock. Landed on the eastern side. Strongly contorted gneiss of different aspect from that of Eider Duck Island. Pre- dominantly a gray felspathic gneiss with numerous great veins of coarse peg- matite consisting principally of feldspar. The feldspar pegmatite breaks down under the action of the frost more rap- -idly than the gneissic country rock, sallow trenches being formed thus