Hancock, Robert A., Jr.2011-07-292011-07-291974http://hdl.handle.net/2097/10995Digitized by Kansas Correctional IndustriesPsychophysiologyPigeonsThe effect of duration of grain presentation on the rate of pigeons' autopeckingThesisThis volume was digitized and made accessible online due to deterioration of the original print copy. If you are the author of this work and would like to have online access removed, please contact the Library Administration Office, 785-532-7400, library@k-state.edu.