The great majority are the journals published at various American law schools. Although they are typically edited by students, many of them are the leading journals in American law, containing articles by professors, judges, practitioners, and other recognized authorities. Most of them deal with all areas of law, though some concentrate on particular subjects.
There are also journals published by professional bodies (e.g. the American Bar Association), by other specialized bodies (e.g. the Copyright Society of the U.S.A.), and by commercial publishers.
Pre 2000 issues of journals are shelved on Floor 0, ground floor.
Holders of an Oxford SSO have 3 main online routes to articles published in US law journals. See below.
The third link may be a quick way to find US OA journal articles
Access to WPs and preprints
The first link below requires an Oxford SSO for full access to the text (as opposed to just the abstract).
Lawyers and law students should not become over reliant on Google Scholar. There are specialist tools available to use as well :see below
An Index to Legal Periodical Literature (1803-1937)
|Ref Bibl General I35|
ILP : Index to Legal Periodicals (1908-1996)
|Ref Bibl General I56|