"In four brief chapters," writes Clifford Geertz in his preface, "I have attempted both to lay out a general framework for the comparative analysis of religion and to apply it to a study of the development of a supposedly single creed, Islam, in two quite contrasting civilizations, the Indonesian and the Moroccan." Mr. Geertz begins his argument by outlining the problem conceptually and providing an overview of the two countries. He then traces...