Washington Saturday July 6-1907. Visited the U.S.N.M. War Series at Rathbun and Stegner, in the afternoon visited Great Falls. The upper broads valley of Great Falls is very plain above the Falls. The new page is sharp and angular. The river sand seen here is coarse, and unassorted, dirty and of very varied signs. This nature we like the Patuxent sand seen on Thursday. In the evening called at the Cosmos Club and met Lindgren. 2938 July 7-1907 Sunday. Left Washington at 9.10 A.M. and arrived at Harpers Ferry a little before eleven. Then climbed the [illegible] Virginia Heights and had a grand view of the Gap. The Potomac cuts directly across the strilly of the Blue Ridge at Harpers Ferry. Then the Eastern Branch comes in and the Potomac diverts more to east and cuts North out at a considerable angle.