Professor Jenkins develops a systematic theory of the origins, the ends, and the functions of law. He then applies this theory to the problems that law encounters and the conditions that it must satisfy if it is to be an effective force in society. Originally published in 1980. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.