The Occupational Safety and Health Act of 1970 was a far-reaching effort to reduce the pervasive dangers of the work environment. It was also in several respects a novel experiment in regulation. The accumulation of five years' experience under the statute affords an opportunity for reexamination of its provisions in the light of numerous judicial decisions.

This paper is the first in a series on data collected for the Law Student Activity Patterns Project. The project is one of several discrete studies in the research program in legal education of the American Bar Foundation, conducted at the request of the American Bar Association House of Delegates, with the advice and consultation of the Special Committee for the Study of Legal Education. A major purpose of this research is to develop an understanding of the professionalization of law students in behavioral terms, that is, in terms of patterned activities and time use. However, we will first present a series of initial reports analyzing data relevant to other general concerns about contemporary legal education.

This article has been produced under the Samuel Pool Weaver Constitutional Law Essay program, which is supported by trust funds given to the American Bar Foundation by the late Samuel Pool Weaver to encourage research and writing about the Constitution and its application to current problems. Under the terms of the program as presently structured, a constitutional law scholar is invited from time to time to write an essay on a subject agreed upon between the scholar and the American Bar Foundation. This is the first essay produced under the program's new format.

Private treble damage actions have long been recognized to play a major role in antitrust enforcement. The present study evaluates the impact of the class action on private antitrust enforcement in one large commercial district, the Northern District of Illinois. Data were collected through attorney interviews and from the docket books and files of the clerk of the court on all antitrust treble damage actions not transferred to some other district that were filed from the inception of the amendment to rule 23 on July 1, 1966, through June 30, 1973.