This is a report to the American Philosophical Society summarizing archaeological data on Pennsylvania tumuli contained in manuscripts deposited in its library. This report includes essays on earlier theories, the position of the Iroquois, Carpenter's conclusions, and summaries of the Irvine Mounds group and the Sugar Run Mounds. There are also essays on Sugar Run pottery and skeletal remains by James B. Griffin and T. Dale Stewart.

These are site reports on archaeological excavations in northern and western Pennsylvania and upstate New York. Most of the excavations were sponsored by the Pennsylvania Historical Commission (1929-1948). The reports include photographs, maps, and diagrams.

Through his craniometic studies of human races, the Philadelphia physician Samuel George Morton (1799-1851) exerted a profound influence on the development of physical anthropology in antebellum America, and made substantial contributions to mineralogy, paleontology, and natural history. Relating primarily to Morton's scientific interests, the Morton Papers include insights into Morton's perspectives on education, medical practice, geology and mineralogy, craniology, paleontology, the Wilkes Exploring Expedition (also known as the United States Exploring Expedition 1838-1842), and his two major monographs, the Crania Americana and Crania Aegyptiaca. Several of the letters were written by Morton in his capacity as corresponding secretary of the Academy of Natural Sciences of Philadelphia. Also included in this collection are Morton's "Some Remarks on the Infrequency of Mixed Offspring Between the European and Australian Races" (1850), Joseph Barclay Pentland's notes on the aborigines of Peru (ca. 1840?), and newspaper clippings on Morton's death; a diary of Morton's trip to the West Indies, 1834, a set of craniological sketches for use in Crania Americana, and a microfilm of letters in private hands, written to Morton, 1838-1844