Surveys recent literature on the origins of language, and speculates on the history of human language, especially on the factors contributing to the change from a gestoral to a vocal system. (Available from the University of Alabama Press, Periodicals Department, Drawer 2877, University, Alabama 35486.) (AM)

A collection of research materials on sign language and primatology is presented here. The essays attempt to show that: sign language is a legitimate language that can be learned not only by humans but by nonhuman primates as well, and nonhuman primates have the capability to acquire a human language using a different mode. The following…