Fifteen Years in Hell_ An Autobiography

Mexican Copper Tools_ The Use of Copper by the Mexicans Before the Conquest; and The Katunes of Maya History, a Chapter in the Early History of Central America, With Special Reference to the Pio Perez Manuscript.

The early life of Abraham Lincoln_ containing many unpublished documents and unpublished reminiscences of Lincoln's early friends

Some Notes on Early Woodcut Books, with a Chapter on Illuminated Manuscripts

Twenty-Seven Years in Canada West The Experience of an Early Settler (Volume I)

The Voyage of Verrazzano A Chapter in the Early History of Maritime Discovery in America