Making of Modern Law: Legal Treatises 1800-1926 This link opens in a new windowDerived from two essential reference collections for historical and more contemporary legal studies--the Nineteenth-Century Legal Treatises and Twentieth-Century Legal Treatises microfilm collections. Legal Treatises comprises over 21,000 works from the nineteenth and early twentieth centuries on British Commonwealth and American law, with 14,900 titles from the nineteenth century and 7,100 titles from the years 1900 to 1926. It covers nearly every aspect of law, encompassing a range of analytical, theoretical, and practical literature, some very rare. The monographs and materials in Legal Treatises include casebooks, local practice manuals, books on legal form, works for lay readers, pamphlets, letters, and speeches.