United States surveys. Colorado Hayden survey mentioned. R.M.News. wg. 16,1876 p.4 c.1 Sullivan's United States coast survey. R.M.News. Sept. 19, 1876 p.4 c.1 Hayden's survey. R.1?.S7ews. Sept. 9, 1876 p.4 c.1 R.i,°_.News. Sept. 20, 1876.p.4 c.3 R.M.News. Sept. 26, 1876 p.4 c.2 Hayden's geological survey. RAIT.News. Oct. 4, 1876 p.4 c.4 Hayden survey. R.Ld.News. Nov. 11, 1876 p.2 c.3 Lectures by Edwin a. Barber. R.M.News. Dec. 19, 1876 p.4 c.1
Click tabs to swap between content that is broken into logical sections.