The Key to Culture bundle (see details)

The Key to Culture by Joseph McCabe, Edited by E. Haldeman-Julius

Number 22: A Graphic Account of the History of America. The Essentials of the Story of American Growth and Progress.

Number 40: Important Facts about the Progress of Science. A Complete History of Scientific Advance

Both pamphlets are in good condition. some bends an blemishes. Newspaper style font with some markings.