Increase A. Lapham

• Antiquities of Wisconsin
• Correspondence ?Lapham (Increase) and Engelmann (George); Lapham to Engelmann, 1841-1868
• Fauna and Flora of Wisconsin
• Report on the Disastrous Effects of the Destruction of Forest Trees
• Report on the Disastrous Effects of the Destruction of Forest Trees, Now Going on So Rapidly in the State of Wisconsin
• Wisconsin