This collection houses legal documents, correspondence, and other materials documenting A. H. Hubbs' efforts to purchase land in Tennessee and establish the Tennessee Phosphate Rock Co.

The collection features a stereoview of several men mining for phosphates near Columbia, Tennessee (n.d.). On the reverse side is the title of the image, the latitude and longitude of the site, a brief explanation of crop rotation and fertilization as methods of dealing with farming problems, and a description of phosphates.