Report discussing earthquake activity in the United States during 1952. The report is broken down by regions and has sections for specific earthquakes.

Abstract: In 1958 geologists of the U.S. Atomic Energy Commission and the Instituto de Investigaciones Geológicas de Chile made a reconnaissance for uranium in the Mamiña area, Province of Tarapacá in northern Chile.

Abstract: The Elqui-Vicuna area, Coquimbo province, Chile, was selected for uranium reconnaissance on the basis of two known uranium occurrences and favorable area-wide geologic indications of the possible presence of uranium in commercial quantities.

Abstract: In September-October 1958 a six-day reconnaissance in the Tocopilla area, Antofagasta Province, Chile, was made by members of the U.S. Atomic Energy Commission and the Instituto de Investigaciones Geológicas de Chile for the purpose of evaluating reported uranium occurrences.

Introduction: This exploratory work was undertaken as a preliminary evaluation of the area's uranium potential, and was limited to reconnaissance for favorable geologic indications of uranium, which included visits to selected localities and mining districts.

Script from the WBAP-TV station in Fort Worth, Texas, covering a news story about a shipment of three new helicopters from the Bell Aircraft plant in Fort Worth to the Chilean Navy.

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Humberto Valenzuela"

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "A colorful Latin-American business will be in Oklahoma City as major attraction of the state lions convention here May 21, 22 and 23."

Letter from Harris Leon Kempner to Dan Oppenheimer discussing about Dan's health condition and the matters related to the cattle in Pecos. And another Chile matter on the overdue items, money, and also shipping instructions for a good cotton deal. Harris Leon Kempner even discusses about the trip that Dan and his wife Gloria could go, if they could secure accommodations and make up his mind.

Letter from Harris Leon Kempner to Dan Oppenheimer discussing about the Chilean trip that can be postponed to next month and the tax situation at Pecos that Mr. Mehan was looking at. Harris also mentions about the leftover cash from settlements at Pecos and requesting Dan to keep track of it.

Letter from Dan Oppenheimer to Harris Leon Kempner discussing about his trip to Tucson and declining Harris Kempner's offer for another one to Chile due to work accumulation. Dan also posed couple of questions regarding Pecos business like its tax refund that Mr. Mehan is tracking and the cotton sales from previous month. Additionally, he also discussed about the T. C. I.'s debt reduction and reviewing Jesse's work.