1 p. article describing the building of the Columbia River Highway, including construction details. The article also contains four photographs: one depicting the bridge at Shepperd's Dell, one depicting the entrance to the observatory tunnel, one depicting Mitchell's Tunnel through Storm Cliff; one showing the overlook at Crown Point on the Columbia River.
Article by Randall R. Howard. The author describes the construction of the Columbia River Highway, and takes us on an automobile journey along the Highway from Portland, Oregon to The Dalles and Celilo Falls. Accompanying photographs are of a stretch of highway on the Washington side of the Columbia River, built by Sam Hill of Maryhill; a bridge above the stream from Latourelle Falls; a tunnel through the rock at Oneonta Gorge; and a view of Celilo Falls.
3 p. An article by Katherine Louise Smith giving a historical and descriptive tour of the Columbia River, including photographs of the Columbia near the Dalles, Memaloose Island, Oneonta Gorge, Multnomah Falls, and of the harbor at Portland, Oregon.
1 p. A letter from W. H. Ballou to the editor of Scientific American discussing statements made by J. F. McIndoe about the south jetty at the mouth of the Columbia River. The letter discusses discrepancies between McIndoe's various estimates of time and money needed to complete the jetty.