ao Skidegate inlet; on the Yakoun river; at Yakoun lake; on the Tlell river and Wilson creek, and elsewhere. The surface on which the Haida sediments were laid down was a very irregular one, and projections of the older rocks are found in the lower beds of the formation. Relation to the Honna Formation. At Lina narrows in Skidegate inlet, the Haida formation is conformably overlain by the Honna conglomerate. The upper beds of the Haida are fine, sandy shales, and at the very top are coarse, calcareous and concretionary sandstones, grading in a short distance into coarser, pebbly sandstones that may be considered the basal beds of the Honna formation. While the actual contact has not been observed elsewhere, structural evidence makes it seem probable that the two formations are closely conformable throughout, though local disconformities may occur. Relation to the Tertiary Formations. Dykes and sills of the Etheline formation intrude the eroded and uptilted Haida formation and flows of the Masset volcanics overlie it. HONNA FORMATION. Distribution. The Honna formation outcrops at Lina narrows in Skide- gate inlet; it forms the western parts of Lina and Maude islands and the northern part of South island; and is well exposed in the vicinity of the mouth of the Dina river on Moresby island. A broad band of the Honna conglomerate crosses Nose point and many of the islands in the western part of Skidegate inlet are of this rock; also it is exposed along the shore from South point to the east of the mouth of Slatechuck creek. Inland a ridge of the conglomerate extends due north from Lina narrows and culminates in the highlands south of Camp Robertson, the strike of the measures changing from north-south, with a westerly dip, to nearly east-west. This strike, with a southerly dip, is maintained as far as Mount Etheline, where the con- glomerate is overlain by flows of Tertiary volcanics. Structural relations in the overlying measures make it evident, however, SERIES PALA GE AIEEE TOE RE OEO H