Food of Sinful Demons: A History of Vegetarianism in Tibet Geoffrey Francis Barstow Austin, TX B.A., Hampshire College, 2001 B.A., Kathmandu University, 2005 M.T.S., Harvard Divinity School, 2008 A Dissertation presented to the Graduate Faculty of the University of Virginia in Candidacy for the Degree of Doctor of Philosophy Department of Religious Studies University of Virginia August, 2013