From abstract: "In this report the mineralogy and uranium contents of southeast phosphates are discussed with reference to the lithologic units of the Hawthorn and Bone Valley formations and to waste slimes. In addition, the immediate problem of sampling leached-zone rock for process development studies is discussed and plans for future work (fiscal 1953) are presented."

Report discussing the sources of about 1,400 samples of samples of mine, mill, and smelter products that were collected by the U.S. Geological Survey. In addition, the "kind of material sampled, i.e. ores, concentrates, middlings, tailings, flue dusts, and so forth, and the radioactivity of the samples are listed in the report."

Report discussing phosphates found in Florida and investigations of uranium in the "Western Phosphate Field," which covers an area of about 100,000 square miles in Montana, Idaho, Wyoming, and Utah.

From introduction: "This report summarizes the research work of the Trace Elements Section, Geochemistry and Petrology Branch, from the organization of the Section in April 1948 to December 31, 1950." Investigation of radioactive materials and investigation of methods for analysis of radioactive materials is included.

Report discussing spectrographic analyses of rocks, ores, mill products, and smelter products. From Abstract: "The analyses are grouped by states and by major raw mineral raw materials. The samples vary widely in character and in kind of material. They were analyzed chiefly by spectrographic methods, the accuracy of which increased during the later stages of the work."

Report discussing the U.S. Geological Survey's investigation of various radioactive mineral deposits in gold-tin placer mines of Central Alaska.

The following report is the fourth in a series of reports on rare and uncommon elements prepared by the Geological Survey. This report covers columbius and tantalus, two chemical elements belonging to the fifth group of the periodic table and quinquevalent in most of their compounds.

Report discussing a geological examination to find uranium deposits in the Colorado Front Range and adjacent areas from 1947-1951. "The investigations consisted chiefly of spot-checking mine dumps, outcrops, and road cuts, and included examination of stream beds, mill tailing ponds, and radioactivity traversing of selected surface areas, and mine workings."

Report discussing the intensive search for uranium in the United States. This report contains information regarding common uranium minerals, types of uranium deposits, methods of prospecting for uranium, distribution of uranium deposits in the United States, and a conclusion.

From introduction: "Part I is a numerical list of U.S. Geological Survey Trace Elements Investigations and Memorandum reports... Part II is a reference guide to Trace Elements and related reports that are available to the public... Part III is a finding list of states, areas, and subjects... Part IV is an author index."

The following report is preliminary in nature, discussing and analyzing traces of uranium in apatite and phosphorite.

From introduction: "This report lists in numerical order U.S. Geological Survey Trace Elements Investigations and Memorandum Reports and supersedes a similar report issued in January 1952 (TEI-202)."

Report containing a topical index of U.S. Geological Survey trace elements with related reports, and a bibliography of U.S. Geological Survey Trace Elements with related reports.

The following bibliography and index supersedes a previous report, TEI-500, "U.S. Geological Survey Trace Elements and Related Reports Through 1954".

From foreword: This report is a statement of progress during a six-month period on investigations of radioactive materials in the United States.

The following report is a statement of the Geological Survey's progress on the investigation of the fundamental geology, mineralogy, and geochemistry of uranium and other radioactive materials with the intention of discovering and delimiting areas favorable for the future production of uranium and other radioactive ores. This report covers the period from December 1, 1956 to May 31, 1957.

A report regarding reconnaissance investigations for uranium in the Colorado Front Range and Adjacent Areas.

From introduction: "Part I is a numerical list of U.S. Geological Survey Trace Elements Investigations and Memorandum reports... Part II is a reference guide to Trace Elements and related reports that are available to the public... Part III is a finding list of states, areas, and subjects... Part IV is a finding list of authors."