Thursday, May 10. Delayed starting until noon that I might get a meridian altitude for latitude. Temp. + 1.5 F at noon. Tonight at midnight it is -14.2 F. A hard day. Have been revolving through crag on crag rises for nine hours. We hunted in vain for better open reading of slabs then in, but finding it all the same. Have decided to go south over a glacier leading into South side Cabogan Inlet. To night we are encamped near a large berg but a short distance from face of glacier. Have taken midnight altitude 2 am and am now snapping two cameras at fifteen minute intervals as the sun as it rolls along over the hills. Cold for this time of year.