The notes here presented are those made during an extended cruise in the Bering sea region during the summer of 1891. The writer was at the time more particularly engaged in the investigation of matters connected with the fur-seal, as one of the British commissioners appointed for that purpose, but his somewhat prolonged familiarity with the geological features of British Columbia and adjacent parts of northwestern Canada caused him to feel a special interest in the corresponding features of the various places visited. The time available for observations ashore was usually very limited, and thus, but for the fact that so little is yet known respecting the geology of the whole region, such notes as it was possible to make would possess very little inherent value. As it is, they may be accepted as a slight contribution to our knowledge of a portion of the globe of which but . . .