Types of Mankind: Or Ethnological Researches, Based upon the Ancient Monuments, Paintings, Sculptures, and Crania of Races, and upon Their Natural, Geographical, Philosophical, and Biblical History: Illustrated by Selections from the Unedited Papers of Samuel George Morton, M. D., (Late President of the Academy of Natural Sciences at Philadelphia,) and by Additional Contributions from Prof. L. Agassiz, LL. D.; W. Usher, M. D.; and Prof, H. S. Patterson, M. D.