Folder "Tests - Non-Military Uses - General Correspondence. Project Plowshare - 1958." Contents Memorandum regarding underground test program. Project papers: "Projects Gnome & Chariot Corresp."; “Operational Concept of theTest Director." "Weapons Program - 1958 NTS." Memo; accounts chart; staff list. "Tests - General Correspondence." Hardtack. "Tests - Hardtack - U.N. Observer Program. " Cooper Development Corp. Progress Reports "Tests - NTS - General Correspondence. ]958." NTS - test organization chart. “Weapons Program - Tests. Telegrams; memoranda regarding planned limited observer programs. NTS - Millrace.