This notebook covers the period July-September 1899. It was used by an unidentified author for notes and drawings regarding a site for the cement works. The selected entries concern Stewartsville and other locations in New Jersey, as well as several places in Pennsylvania. The spine is labeled "Prospecting - Stewartsville And Surrounds." The pages are unnumbered, and several pages have been removed from the book. Approximately 70 pages have been used.

Approximately 50 percent of the book has been selected. The unselected material consists of data relating to drill holes and limestone samples.