The Robert M. Garrels Papers fill twenty-one boxes and span the period 1938-1988. The papers are comprised of four categories: correspondence, teaching files, research files, and publications. Five folders of biographical material and three folders of papers presented at meetings are also included.
The correspondence relates primarily to Garrels' research, writings, and academic interests. The general correspondence is arranged chronologically by year. The subject correspondence is arranged alphabetically by correspondent, deals mostly with Garrels' research, writings, and recommendations of colleagues.
The teaching files consist of syllabi, reading and lecture notes, and related materials. These files are arranged first by the institution where the courses were taught, then by course name and number.
The research files comprise raw data, correspondence, and reports. A small amount of this is in French. The research files are arranged alphabetically by topic.
The books section of the publications category contains correspondence, portions of manuscript and typescript drafts, and notes. The articles section consists of drafts, correspondence, notes, and graphs.
Addition, Boxes 22-24
This addition fills two and a half archival boxes, and spans the period of 1939-1992. The papers are arranged in five categories: Biographical Materials, Correspondence, Teaching Files, Papers Presented, and Publications, with the Publications comprising the bulk of the addition.
The biographical materials consist of teaching requirements, awards, Garrels' M.S. dissertation for Northwestern, programs from conferences at which he presented papers, and a bound volume of letters from his colleagues presented to him on his retirement in 1988.
Correspondence includes subject correspondence with Nature magazine relating to a controversy over an article published by a colleague, and correspondence with the Precambrian Paleobiology Research Group that dates after the PPRG files in the original series. Two teaching folders contain paperback volumes of coursework for Garrels' Geology A1 course at Northwestern. Two folders of papers presented contain copies of the papers and a conference schedule.
Published books consist of two softcover textbooks co-written by Garrels, Fred Mackenzie, and Cynthia Hunt. While many of Garrels' journal articles are contained in the original series, the addition includes a substantial number of articles, dating between 1941 and 1988. Most of the reprints are arranged chronologically; folders may also include occasional sheets of correspondence related to an article. Articles with much related correspondence were placed in separate folders and organized alphabetically by title. Other publications consist of Garrels' editorial work, work completed for the government (mostly the Department of the Interior), and a folder of correspondence and diagrams for an unknown government publication. One folder contains requests to use Garrels' diagrams and figures in other author's publications. A final folder contains unidentified notes taken by Garrels and unidentified article drafts.