... in the fourth edition, it is the hope of the present editors that the original purpose of the work is still being served. When the first edition appeared in 1976-and the second edition in 1985-the ... SI UNITS- A COMMENTARY W.C. KRUTZSCH P. COOPER Since the publication of the first edition of this handbook in 1976, the involvement of the world in general, and of the United States in ... exclusively in one of the many dedicated sec- tions contained in the chapters of the earlier editions. In this fourth edition, these sections have been regrouped to satisfy present needs, additional chapters...