Historical Legal Material

Canada

Canada Supreme Court Reports (HeinOnline - 1876 to 2010)
Canadian Annual Statutes (HeinOnline - sessional and annual statutes from 1792 onwards)
Revised Statutes of Canada (HeinOnline - Revised Statutes from Canada from 1886 to 1985)
Historic Federal Debates (1867-1872)
LLMC-Digital (full-text historical materials from common law countries, including cases and legislation)
Canadiana Online (includes historical Canadian legislation, case law, & texts)
Champlain Society Digital Collection (digital versions of older texts, not all of which deal with the law)
Internet Archive (includes historical legislation, case law, and texts from Canada and other countries)

English Reports, Full Reprint (1220-1867) (HeinOnline)
Statutes of the Realm (1235-1713) (HeinOnline)
JustisOne (UK case law and legislation)
LLMC-Digital (full-text historical materials from common law countries, including cases and legislation)
Parliament Rolls of Medieval England (PROME)
Legislation.gov.uk (legislation from 1267 to the present)
London Lives (wide range of primary sources about eighteenth-century London)
The Making of Modern Law: Legal Treatises, 1800-1926 (British and American)
The Proceedings of the Old Bailey (London's central Criminal Court, 1674-1913)
Internet Archive (includes historical legislation, case law, and texts from Canada and other countries)

United States Statutes at Large (1789-2009) (HeinOnline)
Acts from Australia (1901-2011) (HeinOnline)
World Constitutions Illustrated (HeinOnline)
HeinOnline (some libraries contain full-text historical treatises and other materials)
LLMC-Digital (full-text historical materials from common law countries, including cases and legislation)
The Making of Modern Law: Legal Treatises, 1800-1926 (British and American)
Internet Archive (includes historical legislation, case law, and texts from Canada and other countries)