From introduction: Since 1945 the Alaskan Trace Elements Unit of the U. S. Geological. Survey has been engaged in reconnaissance for radioactive deposits in Alaska, first on behalf of the Manhattan Engineer District, later on behalf of the Atomic Energy Commission. During the period January 1945 through December 1952, 42 reports in the Survey's Trace Elements Investigations series and 18 reports in the Trace Elements Memorandum series, a totaJ of 60 reports, have been completed or are in preparation Of these 60 reports 44 have been completed and transmitted to the Commission as of December 31, 1952.

Report discussing a 1949 geological examination for radioactive deposits in the Nixon Fork mining district of Medfra quadrangle, central Alaska.

Report discussing the investigation of radioactive deposits in granite and search for bedrock source of radioactive materials in the Ruby-Poorman district of Alaska during July 1949.

Letter from Robert H. Alvis to Truett Latimer describing life for himself stationed at an Air Force base in Alaska and inquiring about Truett's political career back in Texas.

A report regarding a reconnaissance done in 1949 in order to look for radioactive deposits in the Nixon Fork Mining District, located in the Medfra Quadrangle, in Central Alaska.