A series of field reports documents archaeological explorations of caves, rock shelters, cairns, house mounds, and burial features across the Ozark region of central Missouri and several other Midwestern states. Site descriptions note human skeletal remains, flint tools, bone and antler implements, pottery fragments, and features such as saltpeter workings, walled graves, and ash beds, accompanied by drawings and plates. A section surveys bluff-top and riverside mound and cairn sites along the Missouri River in Kansas and Nebraska and another treats aboriginal horse mounds. A final part records island archaeology in Hawaii, describing heiau, sacrifice stones, quarries, and burial places, while the author synthesizes topography, artifacts, and site plans to characterize regional variation.