[Engraved maps in Report upon the Colorado River of the West, explored in 1857 and 1858]

Ives, J. C · 1861

"The two engraved maps by F.W. Egloffstein are in a new manner for 1861...The maps were ruled by Samuel Sartain...These maps demonstrate the idea of lighting objects from the side and showing the variations of tone through the use of ruled lines..."--Hanson Collection catalog, p. 25