This is a sketch of the life of William Henry, who, in 1763, was the first person in America to experiment with steamboats.

This dictionary is based on various printed authorities (Zeisberger, Heckewelder, etc.) and contains a separate dictionary of Indigenous place names arranged by states. Maps beyond Lenape territory may contain Powhatan, Susquehannock, Mohegan-Pequot, Quiripi-Unquachaog, Carolina Algonquian, and Pamlico place names.

This volume of letters Sebastian Ferris Streeter and John Henry Alexander, both of the Maryland Historical Society, relating to efforts of Henry to secure information on Indian names and to obtain travel grants from the Maryland Historical Society, the Historical Society of Pennsylvania, and the Smithsonian Institution. There are letters from Edward Ballard of Maine Historical Society, and P. W. Leland and Usher Parsons of Rhode Island Historical Society, concerning New England Indian place names. There is also a letter (1854) to J. Francis Fisher and others of the Historical Society of Pennsylvania, in response to a circular appeal, on Indian names of Northampton County, Pennsylvania (929.4 H39).